I'm very pleased with OS2008 on my N800. It seems faster, my battery seems to last considerably longer between charges, and I like the map application a LOT. I have gotten GPE contacts and calendar to work. I have not been able to get Gnumeric or Aisleriot Solitaire to work. When I go to CNN.com and watch a video it seems a lot smotther than it was under OS2007.

Skype and GizmoProject both seem to work fine.

I used the backup program on the N800 prior to upgrading and it remembered my wifi login passwords, bookmarks, etc.

I would give it a thumb UP.