European Myspace competitor Netlog, which has over 33 million users, has released its native iPhone app. Users can get a feed of friends updates, see pictures, upload content and add pictures. Unusually, it is also GPS-enabled, something Facebook has so far steered clear of. It’s TechCrunch’s general view that if Facebook added true, location-based mobile social networking to its iPhone app, it would probably kill off a lot of the startups in that arena fairly swiftly. But it has yet to do so, leaving the way open for sites like Netlog. (App store link)