I have now had the PB since launch day. It is bridged to a 9800 on AT&T. I am about 85% satisfied. The only real outstanding issues are:
no copy/paste in bridged email
no automatic hyperlinks in bridged email
can't open office attachments from bridged email (have to open from web browser email)
inconsistent bridge/wifi interaction
no kindle/nook readers
other than that, I've been pretty happy with performance and functionality. Portability has been great. I've used it at airports, coffee shops, and in client meetings where otherwise I would have had to pull out a laptop. The 7 inch size has been perfect for my needs; any larger and I might as well use my 3 lb laptop.
to be completely accurate, I should also add the lack of auto text is really annoying. One other problem has arisen as well, I now keep trying to swipe my torch to close apps; it doesn't seem to work.