Google has been very conservative about releasing APIs for Google+ and may not even release a full read/write API for its social network before the end of this year. The one API the Google+ team has put its weight behind, though, is the Hangouts API, which gives developers access to Google+'s video chat features. Today, the company announced that it is taking this API out of preview. This means developers can now launch and share their hangout apps with the Google+ community. To launch this feature, Google has partnered with a number of developers, including Aces Hangout, Cacoo, Scoot & Doodle, Slideshare and Clubhouse Challenge by Bravo.