When I first heard about this new iPhone app I thought "of course... there's an app for that". Apparently with this app you can write and record songs to original beats. The app has a notepad, a microphone and 10 tracks for the user to record to. Freestyle is also endorsed by my boys Tanya Morgan (Brooklynati in stores now!). For a limited time it's available for free on the iTunes store.
Check this video of the boys Von, Don and Illyas using the Freestyle app.