Microsoft has removed the Facebook and Twitter apps from the Xbox Live App Marketplace via the recent Xbox 360 dashboard update. The Twitter app will now be unusable, but those that downloaded the Facebook app previously should be able to still use it.

“We are retiring the Facebook and Twitter apps,” a Microsoft representative said. “Xbox Live subscribers will have the ability to access these sites through Internet Explorer on Xbox, available through the Web Hub located on the new dashboard.”

Source: Neowin