RockMelt
I’ve started playing with RockMelt that launched this week.
It is definitely an innovative approach to socialize a browser but they may have been anticipated and thwarted by the rise of browser extensions. The key useful feature is the prominent share button. The other main changes to Chrome 6.0 were a Friend / App Edge on the side of the browser and a search preview.
I disabled the edges immediately as they seem to “fix” chrome’s simple UI with needless complexity. The second search bar reminded me of Mozilla’s Ubiquity. Type a friend name get a chat box, type a search term and get a preview of the search results. This is a nice but didn’t do much beyond Chrome’s Omnibox.
All said, Rockmelt (and a number of extensions) have demonstrated Chrome should integrate a simple share button.