So, we thought we'd fire up the old, old, old Treo 650 and see what TealOS looked like on it. The results are recorded above. The launcher actually hits a bunch of the basic webOS functionality pretty decently; swiping cards away, the wave launcher, reshuffling the deck, the transparent launcher. Of course, there's no deeper integration (like webOS's contact aggregation, etc.), and the animation is fairly jagged, but it still does an admirable job of copying the UI. The app is a nice effort from the Teal folks, one which might help you wait out the Pre launch a little, but ultimately it's window dressing more than anything else.