I am not sure about MeetingPlace but I know it does not work for MeetingPlace Express. Attempted it today and it did not work on 2007 but does 2003. I'm waiting on feedback from PDI on a newer version or workaround. I will let you know what they tell me.
Outlook 2007 is supported in MPE 2.0 which is in beta right now. I do not believe any dates have been set for release yet.
We have several customers that are running MSO 2007 and have MPE exchange integration.
I have worked with Cisco Internal Account Rep. and I have spoke the MeetingPlace Express BU and they are predicting that the MPE 2.0 be released in a June time frame.
Very soon they are saying they are getting a lot of pressure with MSO 2007 being released already.
How exactly are they runnign the integration with 2007? I tried and also spoke with PDI who said it would not work. We currently are beta testing 2.0 and that plug in does work. The plug in for 2.0 will also work for MPE1.1.
It is currently supported in MP 5.4 (latest is 5.4 165) but not with Exchange 2007...it is supported if you have a mixed cluster with Exchange 2007 and 2003 and all MP servers and Outlook 2007 with MP clients are pointed to Exchange 2003. Pure Exchange 2007 setup is not supported.
These are the dates I got for Exchange 2007 support...
Meetingplace 7.0 MR1 eta: May 2009
Meetingplace 6.0 MR5 eta: March 2009
Meetingplace 7 now offically supports Exchange 2007.
Also heard that MP 6.0 MR5 will have support for Exchange 2007 but is not officially out yet.