Running Windows Mobile 6.1, the Samsung Jack has just about everything you could want from a smartphone. It comes preloaded with an array of business and social networking applications, offers a full QWERTY keyboard, and provides impressive call quality. It also has a 3.2-megapixel camera, a media player that supports a gamut of file formats, and GPS support.
Unfortunately, the design is far from perfect: The display size is a small 2.4 inches, and the keyboard can be difficult to type on due to its odd key arrangement. On top of that, Samsung nixed the navigational scrollwheel of earlier BlackJacks in favor of a four-direction central button; though it worked fine for navigating through Windows Mobile, it seemed to skip all over the place in Internet Explorer.
