Zensify is a new lifestreaming iPhone app which lets you update, discover and track pictures, videos and comments across multiple social networks. Other apps have tried to do similar things. But what sets Zensify apart is that it shows the user trends within your social graph in the form of a tag cloud of key words. In other words it brings a lot more intelligence to your social graph. Suddenly, you can see a big trending topic amongst people you follow. I’ve been wanting something similar for a while and I’m not alone. David Winer recently Tweeted: “Wouldn’t it be cool if “trending topics” were localized to the people who are followed by the people you follow.” Well Zensify does this.

And it doesn’t just do it across Twitter. It does it also does it across updates from Facebook, YouTube, Flickr, Digg, Delicious, Photobucket and 12seconds. For that reason it is my new favourite app, bar none, and it’s available for free from the app store here.