Looks great. And if ASUS didn't repeatedly screw the pooch on various post-Honeycomb OTA updates for their TF101, I might be inclined to get one. But otherwise, I've lost some respect and excitement for ASUS' non-Nexus devices...
To clarify, like kawininjazx said, the one on NewEgg was/is the previous model (no "HD" in name or specs).
It's not being sold yet: looks like August 9 in the US
GameStop is only place I see with pre-orders so far (and they only list the White, Blue and Pink...) http://www.gamestop.com/browse?nav=16k-3-ASUS+MeMO+PAD+HD+7,28zu0
http://en.wikipedia.org/wiki/Hall_effect#Position_and_motion_sensing Position and motion sensing
Hall effect devices used in motion sensing and motion limit switches can offer enhanced reliability in extreme environments. As there are no moving parts involved within the sensor or magnet, typical life expectancy is improved compared to traditional electromechanical switches.