Wow. It's brilliant - the first thing I've found with full Blogger integration, as well as built in functionality similar to Facebook Toolbar for Firefox. It doesn't yet support every single social network, but it does support a fair few.
It's really good - I'd certainly recommend it if you use the web for social networking, blogging or similar things. As a serious web browser, I think Firefox is probably better, but for those things, Flock rules! I'm probably going to keep using both.
Blogged with Flock