Based on the user interface of the Microsoft Office Communicator 2005 messaging client, the new Windows Mobile client is designed to provide information workers with a premier mobile collaboration experience through native integration of mobile applications with enterprise-grade, real-time communications tools. Extending Live Communications Server to mobile devices furthers Microsoft's vision for integrated communications, described by Bill Gates at the Microsoft RTC unified launch event March 8 as giving information workers access to presence and unified modes of communication -- e-mail, phone, instant messaging (IM), short message service (SMS), videoconferencing and webconferencing -- across a variety of form factors (PC, desk phone, mobile device) and wired or wireless networks.