Things I would like to see added to the Canon 40D.

!. Ability to save images as DNGs.
2. Auto Exposure Bracketing(AEB) EV increased to +/- 3 stops and at least 5 shots(9 would be sweet).
3. Ability to move the focus point w/o hitting the shutter all the time.
4. Way to keep the menu buttons from inadvertently being pressed.
5. Allow the print button to be reprogrammed for another function.
6. Direct Input of nmea info from a gps

Wacky Stuff
A way to do programmed Depth of Field stacking.
Focus while in Live View w/o dropping the mirror.
Ability to change the focus to adjust for focus errors of the camera or lens.
The ability to use the on board flash to control external canon(e-ttl) flashes.