There's been a few articles around lately on the new syntax for Managed C++ that's in VC++ 2005.  MSDN had an article in the May magazine by Stephen Toub, Write Faster Code with the Modern Language Features of Visual C++ 2005 , which focuses on many new features in VC++ 2005, but has a good deal of information about the new syntax for C++/CLI.

Nishant S also has a summary about the new syntax up at CodeProject, A First Look at C++/CLI.