Ars Technica has posted a great review of the current state of Chrome for Mac. Included are two videos showing how far Chromium has come in just the last few months.
Karen Grünberg said “we’re working as fast as possible and progressing as fast as we can without compromising security” and suggested that we might see a beta release in Q3 09.
The article also includes detailed instructions on how to compile pre-release Chromium builds on Mac. Be sure to check it out.