Runs very well currently on my Samsung XE700T1A Slate, much better in fact than Windows 7 does. That said, I'll wait and see what the final release looks like before I decide on any upgrades for my collection of devices as I don't care for Metro on my workstations (they may well stay at Windows 7) even with touch capable monitors.

As for the CIO's embarrassment, I'd be more embarrassed if I wasn't at least weighing the pros/cons now with plans to do hands on testing as soon as reasonably possible among a variety of my mobile user base.