Acer launches the Tempo line of mobile phones. The four new phones include the X960, F900, M900 and DX900. They are all touch-enabled and based on the Windows Mobile OS. The first set of devices will be based on the existing version of Microsoft’s Windows Mobile OS.

The M900 comes with a QWERTY keyboard, a 3.8-inch screen, and a fingerprint scanner. It also has HSDPA (High-Speed Download Packet Access) support, built-in GPS (Global Positioning System), and a 5-megapixel camera. The F900 also comes with a 3.8-inch screen and features a 3.2-megapixel camera, and you also get faster uploads using HSUPA (High-Speed Uplink Packet Access) and support for Wi-Fi. Both phones will start shipping at the end of March or the beginning of April.