Earlier this year, Google said it expected to have a beta version of its Chrome browser available for the Mac before the end of year. It appears that Chrome may be on track for an early December release.
Nick Baum, product manager for Chrome, recently posted on the Chromium mailing list that the beta launch is set for early December. Nick's note specifically addressed a new browser extension called BrowserActions that provides presentation capabilities within the browser. While BrowserActions seems to be working well for Windows and Linux, the Mac version of this extension may not make the grade for the December beta release.
I think most Mac users are more interested in seeing how well the Chrome browser will run on their Macs than in how well the BrowserActions extension works for cross-platform presentations. So, a bit of a delay for a few niceties is fine in my book, as long as we can try out the Chrome browser itself and see how well it stacks up against other Mac browsers.