Later this year the company will release a midtier device, that too was confirmed by the BlackBerry CEO. He says that the company’s ultimate goal is to expand its product portfolio to offer three tiers of smartphones, presumably at varying price points. These three tiers will include devices that have full touchscreens and full QWERTY keyboards. They’ll have screen size similar to that of Z10 or the Q10 so that developers can build apps that are supported easily by all future devices. These statements come a day before the official launch of BlackBerry Z10 in U.S., where reportedly the preorder volume is under expectations.