The IDE has an awesome new splash screen and has totally been reworked in WPF (Windows Presentation Foundation)

Generate from Usage allows developers to quickly generate code from definitions

The dynamic keyword, who better to explain this than the wonderful post by Scott Hanselman.

Here are the screenshots, just to show you what the behaviour is like for a method that is being called that does not exist. This exception is thrown at runtime as the compile time checking has passed.

Call Hierarchy View
This is a pretty cool IDE feature as it gives you a quick indication as to where a call to a method is begin made and from where. It allows for easier navigation and understanding of the code.

That’s pretty much it for now, stay tuned for more quick bits on the IDE!