I don't think mail/contact/calendar synchronization is necessarily business-oriented. I'd like to be able to create/update/delete contact information, calendar events and what not on my desktop PC when at home, and be able to view them on my N800 on the road. Likewise, I'd like to be able to add a new entry using my N800 and sync it right up with my desktop PC once I get home. They are personal needs and have got nothing to do with business.