Here's a link to the map of Tron City I made. It's not particularly accurate, but we have so few references at this point that making it accurate would be pretty impossible. Also the city seems to be built on multiple levels, which is hard to depict in a top-down view.
http://www.flickr.com/photos/59939410@N06/5474535918/
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I've also just added a couple pages of Character Markers to be used in the game.