FWIW, there's another source of info that might be used: jitter. When you have two fingers pressed, not only the reported position is more-or-less the middle point, but it's also jittery.
So you could detect such jitter as a tell-tale of "multitouch" and then use the jitter itself (orientation and magnitude) as an indicator of the actual position of the fingers. Whether it would be sufficiently reliable to be used, I don't know. Stefan _______________________________________________ Openmoko community mailing list firstname.lastname@example.org http://lists.openmoko.org/mailman/listinfo/community