Pantech today announced the Matrix Pro, the follow-up to the Duo. This dual-slide Windows Mobile device sports a number of improvements over the Duo, including a sleeker design, a larger display, and an upgraded 2 megapixel camera, plus GPS navigation, video sharing, and global 3G roaming. Other specs remain similar. The Matrix Pro will be available Feb. 24 for $179.99 after rebate and with contract.