OnePlus has another smartphone slated before the year ends, that much is known. What form it will take or what purpose it will serve, however, has yet to be revealed. If leaks and rumors are to be taken at face value, this 3rd OnePlus smartphone would take the spot of a mid-tier offering. But don't let that label fool you. Based on this latest bit of info, the OnePlus mini, some call it the OnePlus X, possesses some features that, at least for some fans, should have been in the OnePlus 2 in the first place.