If you're a developer, you're probably already running the version of Chrome released to the Dev channel, but many "regular folks" are hesitant to make this switch because moving from the stable release to the beta or the beta to the dev release is a one-way conversion. You can't go back to an earlier build without re-installing Chrome. So how's another ordinary techie supposed to play around with all the cool new stuff coming to Chrome? The easiest way is to install a build of the Chromium browser side-by-side with your (stable) version of Google Chrome.