As news trickles out on the revision of the Sony product and people get their hands on samples, the news trickles out in blogs. Here is a little bundle of ones I've seen.
MobileRead Forum Conference Call with Sony basically reviews features as discussed before release with Sony now their reporting embargo has passed.
This MobileRead post reviews the specifications.
Last but not least this Teleread post reviews the product, and argues it's still too expensive to have mass market appeal.