On Tuesday, T-Mobile announced a special, one-day sale to celebrate Valentine's Day in which all 4G smartphones will be free with a new two-year contract.

T-Mobile's senior vice president of marketing John Clelland said:

“T-Mobile has a commitment to make the 4G experience affordable and accessible to everyone, so this sweet deal on smartphones and tablets is our Valentine’s gift to consumers."

The wireless carrier is offering the Samsung Galaxy S II, BlackBerry Bold 9900, HTC Amaze 4G, Lumia 710, SpringBoard tablet, and other 4G devices, for free with a new two-year contract. The one-day sale will be on Saturday, February 11.

Microsoft's Kinect currently functions as an optional peripheral for the Xbox gaming system and uses a camera and microphone to watch and listen to a user for commands. Soon, however, Kinect may be coming to laptops. Microsoft is said to be working on integrating the Kinect motion sensor into laptops.

The Kinect has been successfully hacked to work on a computer, but in order to work on a portable device like a laptop, significant modifications would be needed.

The Kinect was released in early November 2010. Microsoft has not given an estimates as to when consumers might see the Kinect-integrated laptops, but what we do know is that they'll be licensing the technology to manufacturers rather than building their own in-house solution.

Amazon's Kindle Fire had a successful holiday season with fourth-quarter sales that may have exceeded 4 million units according to analyst estimates. A number of analysts also predicted that the $199 tablet would take a bite out of iPad sales, it seems that wasn't the case at all.

Following Apple's first-quarter earnings report, CEO Tim Cook said that the Kindle Fire had no impact on iPad sales whatsoever. In fact, it was Apple's most profitable quarter ever, and the most profitable quarter ever reported by a technology company.

Cook said that he carefully examined iPad numbers and is convinced that the Kindle Fire didn't affect iPad sales. He said that he looked at the iPad sales numbers in the U.S. every week following the Fire's launch and noticed nothing.

You have been warned. If you're a Facebook user that hasn't already voluntarily switched over to the new "Timeline" profile layout, you'll be switched over regardless of your preferences now as Facebook begins the mandatory roll-out of the new layout.

The Timeline feature, for those not acquainted with it yet, differs from the default profile pages we've come to know on the social networking site. Instead of just showcasing your most recent posts, your profile can be scrolled back weeks, months and even years at a time. It could still be done with the old layout, but it was a much more time-consuming and cumbersome process. Human resources personnel and background investigators will now be able to scan your Facebook past much more efficiently and quickly.

Timeline can be both a positive and a negative. Looking back through the past can bring about some nostalgia, but it can also drag up some of your less positive moments and posts.

Fortunately, nothing is set in stone and you can go back in time and remove some of your more embarrassing posts. You now have until Tuesday, January 31 to look over your Facebook timeline before it goes "public" for all the world to see. So use that time to find any of those posts you'd not like seen before it's too late.

2012 promises to be the year of the Windows Phone, as Nokia has begun launching all their handsets featuring the Windows Phone operating system. Other manufacturers, such as HTC, are also releasing new Windows powered phones. Analysts at IHS (fomerly iSuppli) believe that the Windows Phone's best year will come in 2015, when they predict that it could edge Apple's iPhone for the second place ranking behind Google's Android smartphones.

IHS analysts say that thanks mainly to the new Lumia 900 and Nokia, Windows Phone could represent 17 percent of smartphones shipped in 2015.

Windows Phone made up just 1.9 percent of the market in 2011, with Apple at 18 percent and Android at 47.4 percent.

IHS predicts Windows Phone will reach 16.7 percent of market share in 2015, behind Android at 58.1 percet and iOS at 16.6 percent. IHS said that the introduction of the Lumia 900 running Windows Phone 7.5 at CES showed both Nokia and Microsoft's promise in smartphones.

The Lumia 900 will be coming to AT&T in the coming weeks. Pricing hasn't been announced, but it will be the first Nokia device to run over 4G LTE in the U.S. Nokia is also planning to sell the Lumia 900 to businesses through Microsoft's business channels.

Francis Sideco, an analyst for IHS says:

If you're looking for a way to meet your New Year's diet and fitness resolutions, Nike may have just the device to help you meet your goals. On Thursday, Nike announced the new Nike+ FuelBand, which takes the Nike+ data collection engine and expands it into a full day's worth of activities, and combines it with a basic LED wristband for data reporting and interaction. Similar to previous incarnations of Nike+, FuelBand can sync with an iPhone over Bluetooth, or can report straight back to your computer by USB.

So how does it work? The concept is pretty simply. You just set a day goal of physical activity, and the FuelBand will keep track via a built-in accelerometer. When you start out the day, the color display is fully red, and shits fully to green as the user reachers his or her goal. Progress can be measured in time, calories burned, steps, or the proprietary NikeFuel, which is a social metric that gives you more "points" for more strenuous activity. Syncing with the iPhone app or Nike+ website will get you detailed goal tracking and motivation.

Nike hasn't said when it plans to begin selling the FuelBand, however, pre-orders be start at 5:0pm EST. The device will retail for $150.

On Wednesday evening, Facebook announced new applications that may be used to help populate users' Facebook Timelines with new information. Apps available for the initial launch include Ticketmaster, Pintrest, Rotten Tomatoes, Pose, Kobo, Foodspotting, Gogobot, Trip Advisor, and more.

Facebook has fortunately also added an option that will allow users to choose precisely who can (or cannot) see the updates from each app.

Facebook product manager Carl Siogreen said that more applications for additional interests will be added over time.

After a technology blog reported that BlackBerry maker Research in Motion was actively seeking to sell itself to smartphone rival Samsung Electronics, shares of RIM jumped more than 8 percent.

BoyGeniusReport.com cited an unidentified source indicating that RIM co-CEO Jim Balsillie was meeting with companies interested in either licensing its software or buying a part or all of RIM. Samsung is reportedly leading the pack.

In recent months, RIM has been a target of takeover speculation as its market valuation has hit multi-year lows amid profit warnings and product delays.

Samsung, which is said to be interested in buying RIM, has emerged as the No. 1 smartphone manufacturer on the demand for its Android-based devices. While RIM stock has jumped more than 6 percent four times since December 21, 2012, it is still down almost 75 percent from a year ago.

According to a roadmap leak, Research in Motion has two more BlackBerry PlayBook tablets ready to launch in 2012, despite poor reception of the first-generation PlayBook which launched in 2011. A 10-inch LTE-enabled model will reportedly be targeting late holiday sales in December, and a new 7-inch "3G+" model is expected in April.

Hardware details on both the 7- and 10-inch PlayBooks have not yet been revealed. Previous leaks, however reveal support for 1280x800 resolution, which might mean that one or both of the new models are moving up to a more pixel-packed screen.

Meanwhile, we've also gotten word on when we might expect to see the first BlackBerry 10 smartphones. This unfortunately won't be until September, and what the device actually will be is unspecified at this point. BlackBerry 10 is expected to be be unveiled at Mobile World Congress 2012, which is going on in late February.

RIM is also expected to release two new BlackBerry Curve phones targeting emerging markets. One of them will be 2G only. PlayBook OS 2.0 is expected to rollout in February 2012 and BlackBerry Mobile Fusion will launch in April.

America's beloved shoe buying website Zappos.com was the unfortunate victim of a hacker on Sunday, who gained access to the company's internal network through the company's servers in Kentucky. The specifics of the attack were not revealed, but Zappos said that credit card and payment data were not accessed or affected by the crime.

Zappos CEO Tony Hsieh sent out an email to employees, which read:

"The most important focus for us right now is the safety and security of our customers’ information. Within the next hour, we will begin the process of notifying the 24+ million customer accounts in our database about the incident and help step them through the process of choosing a new password for their accounts. (We’ve already reset and expired their existing passwords.)

Zappos users simply need to reset their passwords and create a new one. The company is cooperating with law enforcement on an ongoing investigation into the incident.