Does the Unity 4 GPU profiler work on anything other than Tegra Android’s (and why not Adreno)? In the video, they showed a lot of iPad’s during the brief talk on the profiler, but is iOS supported?
The GPU profiler uses OpenGL ES “timer queries”, and right now they are only supported on Tegra GPUs.
If Adreno or PowerVR or Mali would support them, then the profiler would “just work” on those GPUs as well. But they don’t 
Speaking of Profiler, when creating a 64bit Windows build, the profiler does not auto attach nor can it be manually attached.
Everything works when making a 32 bit Windows build.