All phones are not created equally, but they can all get along in a musical sense with the Phone Guitar. This guitar was created by a programmer by the name of Steffest out of two Android phones, two windows mobile phones, and an iPod touch.
Steffest didn't create the Phone Guitar just to shred, he created the mobile guitar to showcase mobile cross development at his presentation for Mobile Camp Brussels. Hopefully developers recognize the power of cross-platform apps for phones sooner rather than later. Check out the video of the Phone Guitar in action, shredding 'Cracklin Rosie'. Rock on phones, rock on.