We've written about the folks at CodeWeavers
before. They make a customized, commercial version of
Wine called CrossOverLinux. and have been major contributors to Wine. (Wine allows Linux users to run Windows applications.)
This post from the CodeWeavers blog details how the company has succesfully ported versions of Chromium--the open source core of Google's Chrome browser--for Mac and Linux. The ports are
free and available here. You won't want to run these ports as your main browser, but as proof-of-concept for cross-platform versions of Chrome, this is good news.