I don't understand not wanting to have a camera. Cameras are TINY! There is no weight concern. You have to carry a camera anyhow.
Here is the choice: 1) 770 + phone + camera + scanner + fax/copier(with printer) 2) 870
I've been wanting to write a program that uses multiple passes of a web-cam to do high-res scanning and faxing/printer-copying. If the camera is of sufficient quality I'll probably take the plunge. Why have a separate (and not really portable) scanner/fax? I can take my entire office in my pocket unless I need scanning/faxing; then it's back to the luggable briefcase. YUCK!
My wish list is: better processor (So audio/video doesn't ever skip) more memory (So I don't have to use expansion for software/VM; only for media)
SD expansion (for all of my books, music, video, photos, scanned files, etc.)
data link (e.g., EDGE or WiMAX)
powered USB (and USB charging).
The bottom line is I don't want to carry five devices and all their cables.