If no one wants to own a Facebook-centric phone, why should we think a Twitter-centric phone would fare any better? Nonetheless, it seems that Twitter might be trying to come up with a Facebook Home-type product of its own because it’s just acquired Cover, a replacement Android lock screen that was designed to help Android users manage the plethora of apps that clog up their device’s home screen. In announcing its acquisition by Twitter, Cover said that it will now “be building upon a lot of what makes Cover great… to create something even better at Twitter.” Cover also says that both it and Twitter share a “vision that smartphones can be a lot smarter — more useful and more