In the small universe of smartphones that work with Sprint's Direct Connect service, the Motorola Admiral is top dog. Don't expect a slim model with a giant screen and the latest version of Android, though. The Admiral is designed to be a tough, rugged phone that meets military specifications and satisfies customers who are comfortable with a QWERTY keyboard and a somewhat bulky device. Thats not to say the Admiral is all work and no play. It does include a 5-megapixel camera and the usual assortment of social networking and media apps. But this phone inherits the Nextel push-to-talk mantle, and in the end, that button on the side may be its most important feature.