The nexus one (or at least some) had a similar issue. After a while the touchscreen became almost unusable. Turning the screen off and on again fixed the issue, but it was annoying. Seemed like a hardware defect, because it never got fixed by software. I hope this is not the same problem.
A similar thing happens to a Motorola Xoom that own. Turning the screen on and off always fixes the issue. It's usually rare, once every month or so, so it's not that annoying, but when it happens, I end up swiping multiple times and then realize, oh I've run into that problem. I can live with it, but would be nice if it was fixed.
