New Orleans is now covered by Google Maps' oblique satellite views. I'm sure there must be more cities that have been recently added but New Orleans is the only one I've found so far. More info about pdf vector format of a Free vector map USA, Adobe illustrator can be found here.
This Google Map shows the cities around the world that Google have aerial views for (New Orleans has yet to be added). I've updated my Aerial View Map to include aerial imagery of the Louisiana Superdome and Jackson Square in New Orleans.
I've also updated the Bird's Eye View with the new imagery. This map allows you to compare Bing Maps' Bird's Eye View side by side with Google Maps' aerial view.