I'm trying to debug an app running inside the windows phone 7 emulator, but I can't connect to it from visual studio - Attach to Process -> selecting Windows Phone 7 Emulator transport displays an error:
"Unable to connect to 'Windows Phone 7 Emulator'. Not implemented"
What am I missing?
I don't think it's possible to connect to an app that is already running on the emulator.
It sounds like you're trying to connect to the emulator directly yourself,rather than the app running in it. Which I don't think is what you want anyway.
It may help if you think of the emulator as a virtual machine. That's what it is. (near enough.)
If you want to debug an app in the emulator, you need to launch it through Visual Studio.