You can use any mobile hardware or application that you want, the more the merrier...
and the idea with the music is that you make a special soundtrack or special sound for Palm Sounds... This is maybe the trickiest part to figure out what that would be?
There is prices and attention to be gained and the winner will be announced the 25th of May so get to work (or participate with something already made)!
To read all the information and what prices is on offer go here: