Today I have learned how to play multiple sounds in parallel thanks to SoundPool class. Quite easy – you just need to save the streamID results from play() function is you want to stop them before your audio clip finishes.
Also – seems that multitouch allows only for two fingers tracking and is far from accurate when the fingers are close (at least on my HTC Desire) – all is fine when they are away or when you use single finger. Playing on two nearby kes is not that easy though. Hope this is a hardware “feature” in this model only.