There should be a business quality "E820" too, because not everyone wants a slider or want to take a phone to connect to Internet on the way:

- form factor: like E61 (no slider) + materials and shapes from N810 (metal, aluminium), 14mm thick
- screen size: like E61, maybe a bit larger
- screen resolution: 640x360, multi-touch (to touch if installed in a car and for canola)
- keyboard: like E61 (please no flat keys like on N810 or this crap on N82)
- camera: Zeiss with Flash from N82
- GPS with 10hz resolution
- 2x Acceleration sensor
- working 3D chipset + playing HQ videos
- GSM + HSDPA (to take calls too!)
- maybe WiMax (but I think WiMax sucks...)
- 1x Full-SDHC, 16GB onboard
- car mounting kit wich doesn't scratch the device
- carman + canola2 + claws-mail integrated

Edit:
> - camera: Zeiss with Flash from N82

of course, including the open/close mechanism for the lense

And:
- Video out (like on N82)
- hardware bus to play full resolution Video recorded with the digicam
- as screen size is 4:3 like E61, it could be 640x480 too of course (but 640x360 should be enough. I think most of us can life with 480x320 like on iPhone /BB-Bold too)
- rubberish or leather battery lid (to avoid scratches, it looks awful on metal, but acceptable on a rubber/leather surface)

Imagine the case of N810 (a bit smaller) with the front surface (especially the keyboard) of E61, Naviwheel instead of a joystick, VGA cam for Skype Video at the front and the back surface with the cam module from N82.

Nokia, do you hear me? This device with a stable system (maybe dual boot Symbian and Maemo) will blast everything away what's on the market now (and the next few months) if you release on xmas 2008.

For the Internettablet users, which needs a bigger device, a N900 with higher specs must be released too! But personally, I don't need it if I'm away. I'm happy with the multimedia/navigation/phone features of N82, with the keyboard of E61 (for shell + ssh) and with Linux in a pocket. I think and hope, most of the users will be happy with an "E820" too

This thread looks like it can only be one N900 device which fits all. But as every user is different I think this is impossible and it should be two (or maybe three) devices...