Whether you’re trying to be more organized, want to see the latest app from NASA or just want some paid apps for free, you’re going to be happy with this week’s list. There’s a great organization app called Wunderkit that promises to keep you on track. NASA released a traffic controller game, and Steam Mobile is out of beta already. Then there are also all those limited time freebie apps. Enjoy.

With my current MacBook closing in on its third birthday, it occurred to me the other day that it might be prudent to check out the condition of the battery. Happily, there are several utilities for doing that, and I downloaded a couple of freeware examples to check out their comparative usefulness, as well as that of the MacBook battery.

This week on the Free Apps Roundup: Can’t tell what the song you’re listening to is trying to say? It can be difficult. That’s why Shazam is back with a new app to add information to your music. Shazam Player will stream the lyrics straight to your device, so you can finally know what Fall Out Boy is saying. In addition, Steam released their beta mobile app, and I found a number of great limited time freebies to keep your device brimming with apps.

If you had plans to give that special someone an iPhone 4S for Christmas, you may be out of luck; retailers are out of stock, and Apple’s online store is estimating shipments within one to two weeks. So, why not take advantage of this opportunity to get a custom case made in the meanwhile? They make great personalized gifts, and even if the recipient will have or already has an iPhone 4S, they’re worth the wait.

If you love learning like you should, you’re going to love what Apple’s done for iTunes U. Now it’s not just a section in iTunes, it’s a great app for iPhone and iPad. So download iTunes U, find some interesting (science) classes and then, instead of doing homework, download a game or two.

This week on the Free Apps Roundup: It’s time to get back on track with your resolution this year with Runtastic, another great choice in running apps. Or perhaps you’d rather get back on the go kart track with Tiki Kart 3D. Join Tiki Bobby and race your way to victory in the kind of graphics and mayhem you’ve come to expect in a kart racer, just without the price tag. All this and more on this week’s list.

In Legacy of a Thousand Suns, you travel around the galaxy from a planet full of robots to a planet full of prostitutes as you fight to free the Sian Empire after it was invaded by the Centurian Collective. Along the way you find new allies to engage in daring missions and dangerous enemies that will test both your mental and fighting abilities.

Are you suddenly finding yourself prompted to enter your password in OS X each time you drag an item to the trash? It’s a somewhat common problem with a relatively easy fix, provided you’re comfortable working in Terminal. Head inside to see how to make your trash yours again in five quick steps.

The holidays are over and chances are good you had to head back to work this week. CloudOn wants to help with their MS Office app that creates, views and edits Excel, Word and PowerPoint files. Now you can work anywhere. Joy. In case you’ve had enough work, you’ll enjoy the other great apps and games I found, all of which will only be free for a limited time.

It’s 2012, which means it’s time to buy a new Mayan calendar and to stay / get back in shape. The winter does a number on many waistlines, and there are two ways to fix it: diet and exercise. I’ve rounded up some free apps to help what is statistically most likely to be your more »