Dave Goldman, who has been working on and is coordinating a lot of Exchange Server 2010 Address List Segregation documentation effort – has posted an update to give you an idea where things stand right now and what to expect in the future as far as transitioning between versions of Exchange if you use this functionality. If address list segregation is something you need for Ex2010 or you’re using it today! “I think you’ll be happy to know that I am towards the end of wrapping up the E2010 Address List Segregation white paper. I’ll post another update as soon as we’re finished with editing and when it’ll be posted.”. After working with development we agreed to post this blog to state a few things: » all know and agree that many customers are looking for this whitepaper to be completed. This *IS* a top priority for us, however this is going to take some time to complete » There is *NO* guarantee that the whitepaper will be completed by the release of SP1 for Exchange 2010 which’s targeted for 2nd half of 2010 calendar year.