Some of the VE guys put together a CodePlex project to make VE development a lot easier. Marc Schweigert (http://blogs.msdn.com/devkeydet) got a group of 11 devs together and in just 4 days they created a Javascript library that generates Intellisense for the Microsoft Virtual Earth 6.0 AJAX control!   Check out the library, and the complete sample project to host it so you can test it out.   You can find the CodePlex project here.