Considering how similar the 60D is to a GH2, and the affordability of wider FOV vintage glass, I'd see it as at least a bit of an advantage. (that and the Canon Menu is far better - sure, you can get used to anything, but I just can't stand trying to figure that native panasonic bullshit terminology for on a GH2)
I'm not saying the GH2 sucks, or that you can't get wide lenses or anything like that... not for a second... Also, I guess I'm totally forgetting the affordability of the 14 f2.5 for m4/3rds, but still. There's a lot to consider either way.
It's just, for me, assembling an effective 28-50-80-200 fast prime collection on a 60D cost me jack shit, and everyone I talk to who has a GH2 has to put out a chunk of change for that range, unless they go for more tele-lengths and deal with the constraints...
But, knowing you, you're going to defend GH2 to the death, like always ;P
Have a nice day, Bluename.