Thanks Patrick for the intelligible, articulate, coherent commentary. Not that common!
"Try & unlock", it says. Right. You just try. "Nothing available" in the store. Buggy, glitchy as hell on an ipad2, though they say it works "on iPad". This has clearly not been finished yet. Free, and worth every penny.
Ah, looks very interesting.... Unfortunately, like the Korg thing the other day, won't run on my iPads 2 and 3 :-(