Those of you who, like me, wanted to use Google Maps and apply 3D transformations to it probably know by now that it doesn't work. Google restricts the use of BitmapData.draw(). Amazingly this is at number 4 in the open issues with the Google Maps API.
I decided to revisit this problem and found that OpenStreetMap.org loves us and allows the use and abuse of their tiles via BitmapData.draw()! I posted an example and its source on my blog: http://www.wemakedotcoms.com/blog/2010/02/11/using-openstreetmap-and-away3d/ I also use the ModestMaps Flash API to interact with the OSM maps. Cheers, JJ.
