The whole Facebook/Twitter brawl that erupted late last year over Instagram integration has shifted to a new battlefront — the new Twitter owned app Vine. If you missed it yesterday, Vine is a new app that allows you to capture a short, six-second video, that loops endlessly. It shares to Twitter seamlessly, and was meant to integrate nicely with Facebook — but Facebook might not be willing to play so nice.
Apparently, Facebook is limiting how the competition can use its Social Graph. The Social Graph is essentially your friend network, it’s the thing that allows you to go into a third-party app (like, say, Vine), and instantly find your Facebook friends.
Recently, Facebook specifically cut off voice-messaging app Voxer from accessing this information, and now has done so with Vine too. Apparently, Facebook pulled a similar stunt with Twitter in 2010, and Twitter blocked Instagram and Tumblr from using their version of Find Friends in mid-2012.