I have a touchscreen Windows 8 tablet and I would like to be able to use this platform to easily browse control flow graphs in IDA Pro and display them to other people. There are a couple of problems I keep running into - but the earliest problem I ran into is that my tablet has no scroll wheel capability and no keypad with +/- on it, so I cannot zoom in and out of graphs. This is not necessarily a reverse-engineering question per se, but is it easily possible to enable zoom functionality on this platform in a way that I have not thought of yet? What would an extension to IDA that enables pinch-to-zoom require?
It looks like the program GestureKey would allow you to map gestures to keyboard or mouse actions, for use with IDA Pro:
There's a nice demo video of using GestureKey to allow pinch-to-zoom to work with Google Earth: http://www.youtube.com/watch?v=D_EoXY3Jhrw
You may also want to post your question in a more generic form to the Software Recommendations StackExchange.