I just bumped in to this screenshot of the new Communicator Mobile 2007 R2 Java client.
- JME support for Nokia S40, Motorola RAZR devices
- Single number reach
- Simultaneous multiple IM sessions
- Easier IM usage
- GAL search for contacts
Please note that Communicator Mobile for Symbian/Nokia S60 will be release some time after OCS 2007 R2 goes RTM (i have heard six months
A full feature client for Windows Mobile is still part of the solution