TECH has a WordPress.com Review – written on an actual wordpress.com blog. I’ve been invited into the alpha testing also and from what I’ve seen so far it’s shaping up to be a great system. I’m looking forward to seeing what features they add as it moves towards a beta test.
Problogger.net runs on the Genesis Framework
The Genesis Framework empowers you to quickly and easily build incredible websites with WordPress. Genesis provides the secure and search-engine-optimized foundation that takes WordPress to places you never thought it could go.