Map scrolling

How about implementing scrolling option to the incoming map editor? I don't mean scrolling of the screen in editor, since that's kinda obvious, but an option to enable (map author decides if he wants that on that particular map) horizontal scrolling. It would make tees to appear on the right edge of map when going beyond left edge and the other way round.
Of course it would look much nicer if the apparition of the tee didn't look like it teleported there, but going smoothly there, it would give players an impression it's a kind of 3D world and the battle is happening on the side of a cylinder.
Can you imagine what possiblities does it provide? For example, a race map, racing on which would feel like a spiral stairway to heaven!
Vertical scrolling could be possible as well, but it would be kinda weird, wouldn't it? For example, it would allow infinite falling... Doesn't sound as cool as horizontal in my opinion.
What do you think, map makers and others? I'm waiting for your feedback.

Edit: I just heard on IRC that this one has already been suggested, please show me the link if that's true and I will delete this topic.

Take a look at my posts with ideas:
Hammer+charge * Headshots * Yet Another Energy Gun * Map scrolling