Google has just opened up Chrome’s dev channel. The dev channel gives early access to new features and bug fixes. Google promises to release Chrome updates to the dev channel frequently, providing webmasters the ability to test their sites and script with the latest version of the Chrome browser.
Google does warn however that dev channel releases are prone to be less stable than their Beta cousins released on the main Google Chrome website.
To subscribe to the dev channel, you simply need to download and install the Google Chrome Channel Chooser. Full details and installation instructions can be found on the dev channel website.