AirCassette
Until now, folks who longed for a nostalgic tape-style experience were forced to carry around Walkmans, or better yet, ghetto blasters. Now you can get the same experience — kinda — on your iPhone or iPod touch with AirCassette ($2). Inspired by real 1980's cassettes, AirCassette fills your screen with a recreation of popular blank tapes, with simple controls, plus all the modern features you'd expect, like the ability to browse by artist, album, or songs, set up a queue, share a song via Facebook or email, and stream whatever you're playing around the house using AirPlay. All for less than the price of an actual blank tape.