Visual Studio 11 (Beta) and .Net 4.5 (RTM) are now available for everyone : http://www.microsoft.com/visualstudio/11/en-us/downloads
Below are some of new enhancements that I like :
· New Metro UI
· Portal Class Libraries
· Searchable Solution Explorer
· Page Inspector 
· CSS Editor
· Full Intellisense and enhanced editor support for JavaScript 
