Arts Technica has an exhaustive review of the phone.
Engadget has a review with pictures.
And then Gizmodo has an exhaustive review and really great pictures: “There is a lot riding on the shoulders of T-Mobile’s G1 Android phone. In some ways, it carries the collective hopes of Linux, open source and Google fans everywhere. It’s open, collaborative and community-based, in other words, everything the iPhone and Windows Mobile aren’t.”