8hands is a desktop client that displays all the latest updates from all of those sites as well as media updates from your YouTube and Flickr contacts. All you have to do is download and install 8hands and you'll almost never need to visit a web page to keep up with all of the latest news from your friends. If you want to hit up one of those web sites though, all you have to do is click the icon for the service you want to visit and 8hands will pull up a web browser.
8hands is also a fairly competent replacement for desktop Twitter clients like Snitter and Twitterific. The client displays all the latest tweets from your friends in an optional pop up window. And you can send out tweets by changing your status line, although there's no easy way to reply to a tweet by clicking on it and there's no tinyurl integration.
