I was very happy with my n800, I didn't get the n810 as it wasn't enough of a step up and then of course the rumours of the n900 began but it wasn't what I wanted

Both of the O2 shops in Cambridge (UK) have them on demo; it's a bit pricey as yet (off contract*), early adopter punishment applies, but I shall try and pop by to get some first impressions.

So, it might be somewhat sizeable but at least it's thin, so its jacket-pocket sized maybe or cargo-pants sized?

* If it was on Voda, and an on-contract price was not unreasonable, I might consider it but given O2's network is quite poor, I wouldn't sign up with them for even a year let alone two.