I think the touch screen will only be a gimmick if it does not offer anything special that you can not already do otherwise, like try to use the Nikon S60 touchscreen to many controls are now a lot more annoying and time consuming to use
I would like to have a touchscreen if following could be done
It can be turned off and most functions can be done with regular buttons
If you could check spots on screen for histogram etc, just move your finger over screen and you have instant histogram readings
Use the screen to zoom in and adjust left,right, up and down
So lets get Apple and Nikon to have a bit of a roll in the hay and see what we could end up getting
Pete