Canon filed a patent application 20110249165 for a DSLR with a touchscreen:
"The present invention provides an image pickup apparatus that reduces the likelihood that when a user operates a display screen with a fingertip while not looking through a viewfinder, the user's fingertip will be falsely detected, and makes it less likely that erroneous operation resulting from the false detection will occur, a control method for the image pickup apparatus, and a computer-readable storage medium storing a program for causing a computer to implement the method."
The screen shows also a Wi-Fi and network icons - maybe Canon will be the first DSLR maker to introduce Wi-Fi in their models?
Via Photographybay