VS.NET 2010 cool new features
I installed today the VS.NET 2010 beta 1 edition on my laptop. Here are some new feature I have discovered by playing a bit with the IDE and reading about it here.
1. When editing you can zoom in into your code (Good for lecturing purposes or if you need a better glasses).
Zoom out 
or zoom in 
2. Call Hierarchy: unlike the call stack that is available during runtime. The Call Hierarchy is available during design time.Using this nice feature you can see:
Where are the calls to and from a method, property, or constructor.
What interfaces are being implemented
What virtual or abstract member are being override.
(You can use the Call Hierarchy by selecting a method, right clicking it and choosing View Call Hierarchy or you can use the short cut CTRL+ALT+K)
You can also now open any node for any function and see who is calling and who this function calls
To learn more new features ,
What's New in the Visual Studio 2010 Editor
Call Hierarchy