I have been using my surface pro for both LightRoom and Photoshop. both perform well on my system when I use the attached key board and mouse pad, but when I use it in tablet mode the problem I run into is to use a number of functions (Shift, Ctrl & Alt) I have to launch the onscreen keypad which takes up a lot of real-estate. Is there a way around this that I'm missing? or is there a way to include these keys within the interface for people that work on tablets. This would be totally kickass if it where easier to use in tablet mode.
This seems to be an issue with the surface pro not the Adobe Applications. I suggest you get in touch with the Microsoft support about this.