The getPointerReleased() is the only method available to you without the touch commands, nothing else registers.
When getPointerReleased() is triggered, AppGameKit has already moved the mouse position for you. You don't need to adjust it.
I have a menu command where the user can state whether they are in Mouse or Touch mode. I'm sure you could be smarter by analysing the first few activities and working out if the pointer is jumping from place to place too fast to be a mouse. Once you are sure, you could hide the mouse icon.
BUT the problem you have here is that until you've decided, only swipes work and not clicks. My buttons react to the mouse wandering over them (they expand by 10%). So I have a predicament where the buttons may not react to a mouse hover if I try to be more intelligent about it.