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.

Everyone loves dinosaurs, so it’s difficult to think of a way to make this subject more interesting than it already is, but M5859 Studios has somehow done it. They’ve announced an iPad app called Inside the World of Dinosaurs. It’s a comprehensive and fully interactive digital dinosaur encyclopedia that’s narrated by, wait for it, Stephen Fry. Investigate 3D models of 60 dinosaurs from Archeopteryx to Zuniceratops.

If you aren’t familiar with Vito Technology’s apps, here’s a rundown. Star Walk is a tool for stargazing; it helps you identify the objects and structures in the night sky. Solar Walk is a 3D model of the Solar System and Geo Walk is a 3D world fact book. These apps are great for anyone who has even the mildest of interest in astronomy, the solar system or Earth.

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.

Along with rolling out Boxee version 1.5 to the boxes, you can now get additional content into your Boxee box with the Boxee Live TV tuner. It’s a USB dongle that plugs into the back of your Boxee Box and delivers over the air (OTA) content into your Box, giving you yet another reason to cut the cable (bill). This makes the Boxee Box the first mainstream set top box to deliver over the air and over the top (Internet) content. Try to do that with your Apple TV.

From the minds that brought your the Pogo Stylus comes quite possibly the coolest idea for an iPad 2 stand. It’s called the Magnus, and it’ll hold on to your iPad 2 with the miraculous power of magnets. It’s a simple piece of aluminum with strong magnets embedded inside that hold on to the metal backside of your iPad 2.

It’s time to take your mixing seriously with Numark’s iDJ Pro. It’s a DJ controller that makes use of your iPad for a completely new DJ experience.

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.

IK Multimedia has announced their newest addition to their already growing line of iRig adapters, the iRig PRE. It’s a high quality microphone preamp that connects your favorite studio mics to your iOS device. This adapter is the first of its kind, taking a standard XLR connector and plugging it straight into the headphone port of your iOS device. You can expect to see it pop up in early Q2 2012 for $39.99.

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.