What is Urban Spoon?? (I will have to look it up.
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There are several lists of apps that are known to work. Start with the stickies at the top of this forum. There are some threads in the archived forum too, I think.
Side note: I looked up Muscovy Duck in one of my bird books and there you were!
Edit: I looked up Urbanspoon and before my browser crashed (I'm on my EE) I saw that the Android version of the app allows you to "shake" for restaurants. My guess is this requires an accelorometer which the eDGe does not have. You can always look up Urban Spoon in your browser for whatever city. Not as much fun, but hey . . . .