Adding an opt-in method of installing the Chrome extension during installation = Hey thanks! This is really convenient and helpful!

Bundling the extension by default during installation = Really?! Are you kidding?! This extension isn't vital to the Dropbox experience and is only useful to a small subset of users. If you tell users this extension exists, those who want the functionality will gladly install it. I hope you're at least bundling a 1.0 version when this build is released since the version on the Chrome store says it's BETA version 0.9.7.