I just completed a bluetooth demo for a Windows Mobile presentation that I'd doing at MSDN @ Campus, Coimbatore.
Code snippets is a very good feature which is helpful especially while doing demos. It is good to see the snippets wrapped within a neat XML schema. But, I thought it is slightly cumbersome to create a code snippet. The Powertoys blog has a pointer to a very cool tool - Snippy, which makes snippet creation quite simple.
Creating code snippets [MSDN]
Creating and Using Code Snippets in Visual Studio 2005 [4Guys From Rolla]
Code snippet XML schema reference [MSDN]
You can find some ready-to-use code snippets in GotCodeSnippets. It doesnt contain many snippets, but a cool initiative.