Scott Guthrie has an excellent summary post of some key features in .NET 3.0 that's coming in the next release of Visual Studio (codename Orcas). His post is short, sweet, and shows how you do something today and how it can change in the future.
This covers automatic properties, object and collection initializers (all of which I've been really digging in my test environment). Even with mocks, writing test code is that much easier in 3.0 (or is it 3.5 now? I always loose track) and the syntax isn't as cryptic as LINQ (which I'm still wrapping my noggin' around).
Check out Scott's post here to get introduced to the new C# features.