It is only a matter of time until there is an Office Communicator client for the XBox and the Wii. Next step to a total Big Brother-esque system is to have location triggers that will set your status to say "Near the coffee machine in the Office" and report your GPS/aGPS location. Unfortunately, I know of some organizations that really would like that type of micromanagement of their employees.
Read more about the OCS client for Blackberry at Matt's site here. To go directly to the download page for the client, go here.
The strange part about the client, to me at least, is that it requires a Communicator Web Access installation that the Blackberry Server talks to directly using NTLM/Windows Authentication.