If you're logged in, Buzz Updates (also available at the newly opened, Indian version of the site) shows submissions, comments and votes from your friends. There's another new detail: when you submit a URL, the headline and description will be automatically suggested by Yahoo Buzz.
Despite these updates, feature-wise (and community-wise) Yahoo Buzz is still a far cry from the much livelier Digg and Reddit, but the lure of Yahoo front page traffic has made it a popular social media destination.
Moving into international waters, however, is an interesting step for Yahoo Buzz. They've chosen the market well, as Digg-clones have always been popular in India; one that comes to mind is the simplistic IndianPad. The Indian version of Yahoo buzz is essentially the same as the original, only with a focus on India-related news.
Unlike competitors Digg or Reddit, where any site, no matter how small, can be featured on the front page, Yahoo Buzz has initially worked only with approved publishers (they've opened up to everyone later), and in India they're starting off with about two dozen featured Indian publishers. The interest of publishers for the Indian Yahoo Buzz, as well as general success of the site, will probably be a test for expanding the service to other markets.