Microsoft plans to announce some Wi-Fi wireless networking products tomorrow, reports the San Jose Mercury. Windows XP and CE (PocketPC) already support Wi-Fi (802.11b), which will also be used to connect remote screens codenamed Mira. The software giant already has a number of profitable hardware lines including mice (it launched its first mouse 20 years ago), keyboards and joysticks, and some unprofitable ones, such as the Xbox.