Facebook today announced that it is acquiring mobile fitness app developer ProtoGeo Oy, reports the Wall Street Journal. The Helsinki-based company was founded in January 2012 and launched its first and only app, Moves [iTunes] one year later. The fitness tracking app debuted first for the iPhone and was made available for Android in August of 2013. It is popular, accruing 4 million downloads across both mobile platforms. In a post on its website, ProtoGeo confirms Moves will continue to operate as a standalone app and adds