Research In Motion (RIM) is developing links between its ubiquitous BlackBerry wireless device and enterprise instant messaging (IM) systems from Microsoft, IBM and Novell.

The BlackBerry will become a front-end client device for Microsoft's Live Communications Server, Novell's GroupWise Messenger and IBM's Lotus Instant Messaging and Web Conferencing, formerly called Sametime, RIM said in separate announcements with each vendor.

The separate agreements are designed to extend the reach of each enterprise IM platform beyond the office PC and let users remain connected while away from their desks. With a BlackBerry, users of these enterprise IM systems will view their list of IM contacts and exchange instant messages with them.

The BlackBerry front ends for the IBM and Microsoft enterprise IM systems are expected to be available by the end of this year. No availability date was provided for the Novell client.