It has to run on Windows. I think a lot of these devices are Android based. All the Android pdf readers I have looked at don't meet my requirements. The tablet I want is for reading pdf files and i will use a cordless mouse for scrolling. I am using now a Samsung Q1 UMPC which is good for reading but it's falling apart. I wrote an app to freeze the mouse pointer on the screen (it moves with I use the mouse's wheel). I put up a rig which is a very small table, sits on top of me while I am laying. The Q1 is stuck on its edge holding the Q1 facing me and all I have to do it is flip the page with the mouse wheel. I am not even holding the Q1. Call it the lazy man's reader.