It didn't do anything at all on my N800, except sitting there and eating CPU cycles. No amount of tapping, thumbing or, indeed, cursing would bring up any text entry device. I threw the thing off -- it was either that or throw my tablet against the nearest wall -- but I'm willing to give it one more go. And it really says "read only" on the author's site, in the "news" section, where it mentions the N800 release. BTW, I downloaded the 1.7.2 version, which is mainly the reason why I got angry. A release with that version number should "just work". Period.