Microsoft today announced a wireless version of its IntelliMouse Explorer optical mouse, as well as new versions of the corded IntelliMouse Explorer and IntelliMouse Optical. The new mice feature improved optical technology that provides for smoother cursor control. The wireless IntelliMouse also features a new contoured design, while the corded IntelliMouse Explorer gets enhanced grip support. The Wireless IntelliMouse Explorer and IntelliMouse Explorer will ship later this month for US$74.95 and $54.95, respectively. The IntelliMouse Optical will ship in October for $44.95.