Now that more users have Google's Nexus 7 tablet in hand, we're getting a better sense of the device's subtler design and hardware quirks that come to light with a larger user pool (eg. battery life, heat). Some users, though, have been reporting on a touchscreen bug on their units. That includes our own Android advocate Ryan Whitwam, who has posted a video and explanation of how to test for this worrying behavior.
Watch Ryan's video, download a Tegra game, and test to see if your Nexus 7 has this same problem. For what it's worth, the Nexus 7 we're testing doesn't have the issue, though I'll try