Shiira for Mac OS X

Shiira is open-sourced and a web browser that is built on Web Kit and Cocoa. The 2.0 preview is probably one of the best looking browsers we’ve seen in a long time, but eye candy isn’t everything. Here’s a review of the 2.0 preview.
Definitely go and download a copy of this. It’s one of the most fascinating browsers yet, and the support is a lot better than Safari.