Not quite Tapping the screen causes the N800 to freeze and the watchdog to kick in. This happens when tapping the screen during bootup (the blue bar at the bottom has gone a 1/4 of the way) or during the Nokia hands screen. As I have my cursor enabled at this point, tapping the screen does cause the pointer to move but my N800 to freeze straight after.
The reason why I haven't put my name down for "official" testing is because my N800's touchscreen is already quite damaged (the lower-right quadrant of the screen, for example, is totally unusable) EDIT: Just to clarify, I'm not saying this because I don't trust your work but because I wouldn't be able to give you accurate results because of my touchscreen's state. I'll happily flash any kernel you post up, but I just don't know if any results produced from my N800 would be of any use