I have 2 Compaq/HP tablets and now the Sc3000. After a 10" screen, I like the extra room of the 12.2". Its a pretty solid beast (built ny Tatung) and I do like the feel of the creen for writing. I find I push harder on the Compaq/HP screens because of the glass but I seem to have a light touch for this guy. Parallax for the pen tip is great. I will be trying a screenprotector on the unit next.
The only downside I see is support from Electrovaya. But I like around the corner from them so I can torture them in person if I have problems. They are *NOT* a pc business, just a reseller of tatung products with their battery onboard.
I also have to dock with optical drive. Pretty pricey but so is HPs.
I decided to try a Scribbler because a Tablet PC is all about portability and that means POWER, POWER, POWER! The Tablet PC guys have not yet figured out a three hour battery is not acceptable, neither is swapping batteries etc. It has to last the work day without a charge or its just a pain in the butt. I like not having to worry about carrying the charger and a spare battery like I have to with my HPs. I have strapped on extended batteries but it makes them into a heavy brick.