There isn't any tutorials on the web on how to use Stage3D on AIR 3.0. How do I enable it in Flash Builder 4?
I have countless trial and error when testing 2D/3D framework:
VerifyError: Error #1014: Class flash.display::Stage3D could not be found.
You will need the flex 4.5.1 SDK installed, as well as a playerglobal.swc from FP11. Check out this tutorial: Creating a Custom Flex 4.5 SDK to Target Flash 11 and AIR 3