Amit Chopra from the VS for Devices team has made this post a while ago and I would like to share this with you, if you haven't already seen it. This is really important as it gives you notice up front and perhaps early enough for you to think about impact to your development processes and readiness. I've updated it with some additional info.
This will be more applicable if you work in the managed world (via .NET Compact Framework).
Managed Development Changes and Enhancements.
Link to Story: http://blogs.msdn.com/vsdteam/archive/2006/07/12/6...