Lenovo announced the Tango-Phone 2 Pro, the first commercial system with Google Tango, on their own event "TechWorld" for a release "this summer". Now it seems like Lenovo can´t hold that promised release-windows, as their website now shows a later release date. So far, we can only speculate, Lenovo hasn´t released an official reaction to the rumors yet.
http://www.notebookcheck.net/Lenovo-Is-the-Tango-phone-Phab-2-Pro-late.174039.0.html