When we say "mystery," we totally mean it. We don't know if this is a phone or a tablet, or even if it's real -- stranger things have happened that concocted benchmarks. All we can say for sure is that a previously unheard-of device called the HTC 6435LVW has appeared over at the Community Uploads section of the GLBenchmark site, scoring a ridiculous 121 FPS in the Egypt Offscreen 720p test -- that's more than twice the score of the HTC One X (LTE), and 20 percent higher than the current performance supremo, the Galaxy S III. But that's