We've completed the upgrade to GP 9.0 Professional from 8.0 Standard here at work. We used our VAR to do the upgrade because I've got too many other things going on. All in all though, it was very smooth. Not having to upgrade FRx this time was big help as well. That's where the the last upgrade got hung up.
This will give me an opportunity to blog more on Business Portal items and to find some new 9.0 features via day to day use. I've again confirmed from folks that there is tighter Business Portal integration coming with 10 and that 10 will be the last big release for a while. Something like 6 month service packs and 2-3 year release cycles timed to better coincide with Office. We'll see if that happens but we may finally get a chance to absorb a release before the next one is out.