Protastudio a new iPad application from Tascam allows you to combine up to four tracks and record them with a vintage vibe.
Simply record one track at a time using the built-in mic or a headset microphone connection while checking your levels on authentic VU meters. A cassette transport with position counter tracks your position while you mix with level, pan and EQ controls.
Once you have your 4 tracks you are ready to mix your track and then save it as a CD-quality WAV file. Once created your new track will appear in your iTunes library and is ready to share as you like.
Currently Tascam has no intention of creating any other versions of the app, but if you are interested you can download the app for around $9.50 from the iTunes Store.