Thanks for your addin, mate.
I think like it but can't test it yet because i'm at work. A few month ago i thought about something like that too. I didn't know that you have written this some time ago. This evening i will download and test it. But it looks like i will love it.
I'm currently writing a addin that supports a faster project file switcher like the one which is shipped with borlands developer studio.
Keep up the good work!