Occasionally my Nexus 7 will exhibit poor touch responsiveness. This manifests as a need to drag my finger for an inch or so before scrolling happens, and a need for a firm touch in order to register a tap, and even then it's sporadic.
I'm trying to determine if this is software or hardware. My guess is software: exiting the current app sometimes seems to resolve the issue. Putting it to sleep and re-awakening it often seems to resolve it.
This happens maybe once every day or two, and only tends to last for a few minutes when it happens. (I'm still uncertain if things I do fix it or if it abates on its own...)
As this is my first Android device, I don't have anything to compare it to. Has anybody else experienced this? Any good techniques to determine if it's hardware or software?
I haven't experienced the problem since upgrading to 4.1.2, so I'm inclined to think it was a software problem that's been fixed.