I have tried the following and they are too cool:
Midomi – Allows you to sing or hum a song into your iPhone and it will bring up a list of songs that match your melody. Also, you can hold your phone up to a speaker and it’ll tell you what song is playing. I tried it 3 times and it worked every time! Wow!
VoiceNotes – VoiceNotes allows you to record short voice messages for later playback. Perfect for remembering random melodies throughout the day.
Jott – Notepad that turns your voice into notes. Tried it and it transcribed my voice perfectly. Incredible!
Remote – Use your iPhone to control your iTunes via your Wi-Fi network.
Did I mention all of the above apps are FREE ?
Now I just need an iPhone version of Logic Pro or a mini sequencer and I’ll be in heaven. 

thx
not yet anyways! fingers crossed someone will port it soon!