Nimbuzz has announced updates to its iPhone & iPod touch application, as well as a new desktop client for Apple Mac computers. Nimbuzz enables friends to call and chat with each other for free. They can access their favorite instant messaging and social networks with one login and from one location, using the internet or wi-fi. Today’s announcement brings Nimbuzz’ product to Mac desktops and laptops, in addition to the iPhone, iPod touch and a wide range of other handsets. Nimbuzz says it h