Their point is flawed. Why wouldn't people just use the desktop IE...?GamePro raises a valid point by noting that Windows 8?s Metro interface won?t support Flash, but will instead use HTML5. Depending on how quickly Windows 8 is adopted, Unreal Engine web games could potentially be extinct in a very short time.
I'm pretty sure Adobe missed putting a decimal at least 2 spots to the left of the "1" when giving that number above for OSX.Flash Player 11 is said to allow 1,000 times faster 2D and 3D rendering performance over version 10 and runs at up to 60 FPS on OS X and Windows.
Installed Flash 11.x, it includes x86/x64 drivers and I've tested it using IE 9 x64 and it works, though actually feels a bit slower.
As far as Windows 8 goes, the Metro I/F only runs HTML5 however the standard I/F runs the regular IE (or other browser) with plugins so that should not be a problem on desktops/laptops.