Motorola MILESTONE XT720 official Pictures. Motorola MILESTONE XT720 is a Smartphone of motorola. The Motorola MILESTONE XT720 Android Smartphone. Announced Jun 2010. Features 3.7″ Display, 8 MP Primary Camera, 1390 MAh Battery, 150 MB Storage, 256 MB RAM, Corning Gorilla Glass. Motorola MILESTONE XT720 price starts.