I've been looking to change my personal phone (6210C) to more advanced one. Seriously speaking I have really considered E90 to be my next. I really need something to have more sms cabability, so E61i or E90 could be the thing.
Otherhand, my business includes a lot PGP'ed emailing and this is out of reach with current E90 and variants. So, should it be really small linux based laptop (asus EEE?) - since N810 has no encrypting enabled in GPG.