The Mozilla Project has posted the first alpha of
Camino 0.9, a
Mac OS X web browser based on the Gecko 1.8 rendering engine and the Quartz GUI toolkit. Version 0.9 adds XML pretty printing and various user interface improvements and speed ups.
It supports pretty much all the technologies that Mozilla does: HTML, XHTML, CSS, XML, XSLT, etc.
Mac OS X 10.2 or later is required.