This thread is about Tegra, Tegra3 could be running Win8, Android, BB OS10 or even iOS. You mentioned IB2 as an example that nothing can touch on any Tegra devices, I pointed out a quick one not to mention the T3 custom build of Shadowgun which Engadget said looks better then anything they have seen on the iPad2. For this particular discussion it really has nothing to do with the OS, the point is if Tegra devices can directly compete with IT's GPUs and from the games I have actually seen running on them, I would say very easily so despite what GLBenchmark numbers state.