I recently published a pretty major upgrade to my app imSynt.
Now you’ll be able to:
[ol]
[li]See the color being “played” in full screen mode[/li][li]Use MIDI as the sound rendering option[/li][li]The previous point enables your phone to play different instruments at the same time[/li][li]You can choose from a wider array of instruments[/li][/ol]
I hope to publish updates that enable sharing via Google+ and Facebook soon, as well.