My opinion is similar to 250swb's. I've bought and sold Leicas. I've bought and sold G2 kits (at least four different times!). I don't really miss the Leicas. I wish, though, that i could have adapted to the G2's viewfinder.
The camera looks amazing. Feels amazing. The build is fantastic. The AF and winder are great. The lenses are wonderful. The viewfinder is 'uncomfortable' for me. It's a great system for me one day and then the next day i'm "infuriated" by it. I felt the same way, for altogether different reasons, about the Leica M-system, too.... But, i'm more attracted to what the G2 offers. The M has a better viewfinder, but since i don't like rangefinder viewing/composing, i'd rather just use a Nikon FE2 if i need a larger viewfinder and manual winding. The G2 meets a different set of needs: AF, small/compact/motorwinding.
And, as noted, ToCAD services them in the US.
Try one. Not much can be lost by buying one and using it for a year. You'll either love it or get used to it or reject it. In any case, you should still get some nice pictures, and you'll then know where to go next.