Using MonoDevelop, MonoDroid on a Mac 4.0.6
I am attempting running the sample project SearchableDictionary. When I press Debug, the “Select a Device” dialog appears to choose the emulator. Even though the emulator is running, it is not recognized. Each time we run the debug, it tries to run a new instance of the emulator and never installs the app there.
Is there a way to get MonoDroid to attach to a running Emulator, one that it created in the install process?

To get the Android debugging bridge to refresh in general – not just for MonoDroid – try opening a command line (shell) and using:
This is often required (in my experience)!
See: http://developer.android.com/guide/developing/tools/adb.html for more adb info (Android Debug Bridge)