I have the iP5 and can't turn off the 3D in Maps. Clicking the little building icon merely returns to vertical, buildings are still rendering in 3D, which can slow down to a crawl when not wanted. In IOS 6 on a iP4, the map is totally flat, but that option, as far as I can tell, is not available for iP4S and iP5. Am I wrong about this? Is there something I am missing?