Sean Reid has just uploaded the first part of his two part review of the G1. Really good read. And a lot to feel good about with your discovery of what I think is a truly remarkable development (if you'll excuse the pun) in digital photography.
The first part is a good analysis of the strengths and weaknesses of the G1 concept (and of course its inevitable comparison to the M-youknowwhat).
The second part plans to delve into the quality of the images themselves. (Which I don't think there will be too many surprises if the images I've seen on this site are any indication. )
If you haven't subscribed to his site, very worth it. He's very thoughtful, very thorough and very fair. (And no I'm not a paid stooge, spammer or one of his long lost relatives.)