I just switch to intel xdk too, but after the white screen you've got, I use "import an existing app" instead create blankk to solve the problem.
now i have a black screen on my devices (iphone4 and ipad)
the emulate works ok, but not the test on devices..
i've just create a new project on C2 with just an image to try...
i can see the intel demo on my devices but not the construct project...
any one can tel me how to make this works?