For those who make fun of Visual Basic, Amanda Silver may have something to show off to you. Over at the VB Team blog on MSDN, Amanda shows off 10 new features in Visual Basic. Two of my favorite are Syntax tool-tips (picture on the right, imagine that with LINQ!) and the improved performance on the background compiler. Background compiling is a feature I really wish was part of c# (I use JetBrain Resharper to this currently). I take that back, I want all of these features. I may have to start coding more in VB it looks like.
Feature 0, multi-targeting the different versions of .Net is part of Visual Studio so I'm not counting it.