Exploring the Dreamscape... with a map??

A thought occured to me the other day about what you would see on a map in a lucid dream... I'd figure your mind would think up the image on the map. The reason I thought about it is because I'm a big fan of the game Fallout 3, and I thought to myself, When I have a lucid dream, I should use a Pip-Boy 3000! Then it occured to me about the map function on the Pip-Boy in that game.
I know this question may seem similar to my last one, i.e. Is THIS possible? yadayadayada. And how everything's possible in dreams, but how would maps work in dreams? Has anyone ever tried it?

I play Oblivion so yeah I know what you mean :)

Since you can't read very well in dreams, I'm guessing it would change every time you looked at it. It would be a form of RC.

Yeah. (:
And huh, I never thought of it that way.