I managed to hold onto the system for the beta, so during my dozen or so hours playing ArenaNet's next big MMO this weekend I slipped the game files onto a USB stick, transferred them over, and went to town, Razer-style.
Not too shabby, all things considered. It still auto-detected at low settings, but so did my PC, and it's slightly ridiculous.
Well that worked out. Now everyone beg to see how Mass Effect 3 runs on the Blade so I can keep it til mid-March. From there we'll wing it.