So, what we expect in the next iteration of the C# called C# 4.0 as a development community? You've probably heard that the core team is working on the next version and they put quite an efforts on the expanding the possibilities of the language. If you didn't, check this video from the Channel 9 where they have core guys talking about what is on horizon: http://channel9.msdn.com/posts/Charles/C-40-Meet-the-Design-Team/ C# will contain many features tailored for the better integration with the dynamic constructs of the modern design approaches, which already exist in primitive form today.
I'd like to see more features brought to it to support more parallel programming, such as this addition that exists today: Parallel Extensions for .NET framework http://www.microsoft.com/downloads/details.aspx?FamilyId=348F73FD-593D-4B3C-B055-694C50D2B0F3&displaylang=en This is besides an ADO.NET Entity framework http://msdn.microsoft.com/en-us/library/aa697427(VS.80).aspx In addition, we want to see tightly integrated with IDE application services for virtualization: http://blogs.technet.com/softgrid/archive/2008/06/17/microsoft-application-virtualization-4-5-release-candidate-is-now-available.aspx