A new browser built around Chromuim Browser which Google Chrome is built on and enabled/integrated social networking. Below is their words about their browser.
World, Meet RockMelt
Hello Interwebs! The rumors are true… starting today, we’re offering access to an early version of RockMelt, a new browser designed around you and how you use the Web.
RockMelt does more than just navigate Web pages. It makes it easy for you to do the things you do every single day on the Web: share and keep up with your friends, stay up-to-date on news and information, and search. And of course, RockMelt is fast, secure, and stable because it’s built on Chromium, the open source project behind Google’s Chrome browser. It’s your browser – re-imagined and built for how you use the Web.