I love the idea of having trains connecting the airport, MOA (even though I don't like MOA itself), Minneapolis and eventually Saint Paul.
Yet my favorite piece of transportation in the Twin Cities is certainly the now overlooked but oft-used skyway system. I used to work in office inside Galtier Plaza in Saint Paul, and it was bliss not having to bear harsh winds and inclement weather to run across town. Not to mention, it makes the city feel more interconnected with people walking through the buildings. On a nice day in the summer I tested skyway vs. no skyway, by walking to Marshall Field's Marketplace for lunch. It took nearly double the time to walk on the sidewalks and dodge traffic to get to Field's. The skyway was a quick trip back. Though it was a summer day, so it was nice to get outside. But the convenience factor of the skyways can't be denied.
Plus, where else can you have such interesting events like the mountain bike race which will be taking place in the skyways of Saint Paul this weekend?