Multi-touch/Polyphonic playback... Is this possible?

Hi!

I am just experimenting with using the new sound feature - but is there any way to make it polyphonic at runtime so two or more triggered items could be played simultaneously. For example, if it was a piano then multiple notes could be played simultaneously by touch.

Of course this would not be possible on a desktop/laptop computer (with a cursor), but on a smart phone or iPad when separate fingers can touch different keys at the same time - is there a way that both events could trigger together?

I'm trying to come up with a way to do this but so far no luck, so was just wondering if you can steer me in the right direction - or just tell me that it's not actually possible then I can stop wasting my time ;)

Thanks,
Ryan