@John, thanks for the response. It's disappointing to hear that music stores in Texas have been unwilling to delve into a new instrument, though as you said, the economy no doubt plays a large role.
I play guitar, drum and keyboards and playing polyphonically is exactly why I think the Tau is probably more suited to my playing style. I look at the Pico as more suited towards using looping to overcome this limitation, which in some respects is a superior way of doing it (i.e. your hands can concentrate on a single voice) and in other respects it is inferior (can't interject variation within more than the 'lead' voice).
I wouldn't go to the bother of hunting through the playerbase. I added mikemilton's circle to my G+ and will try to get some information that way.
Is it still true that the software requires a year's subscription?