Flashing is easy-peasy....once you've got the right info and a couple tiny downloads...take you less than 2 min. ....Tweaking it into your own customized monster...however long your interest and curiosity lasts.
.there are informative step-by-step posts in the n800 and os2008 subforums...any questions or help...just post them there...it saves the moderators time and makes it easier for people hunting for the same answers.
Next to my n900 I use my n800's daily...in my studio..wherever.
Good deal at $20 ....one of the best devices ever made. The things you can do with it are only eclipsed by the n900...and there are still a couple that the n800 can do that the n900 can't.