When trying out these tutorials (T4 Tutorial: Creating reusable code generation templates) I noticed that although I was using plain c# I didn't get any intellisense, probably because of the file extension (.tt)
Isn't there anyway to say to Visual Studio to consider those .tt files as .cs files and thus get the correct intellisense help?
Resharper can do this, with the help of the ForTea Plugin that adds support for editing T4 (.tt) files.