Receptional_Andy - 3:14 pm on Feb 27, 2011 (gmt 0)
Yeah - I guess the argument here is that for that user-agent, the permanent location is the mobile version. Doesn't make good technical sense to me though. It also raises a few question about having a separate mobile and desktop search index - presumably that means an entirely different link map for mobile content.
Still, if Google says that's the way they want it, then serving googlebot-mobile a 301 is the way to go.