We were confused by the news articles too. We have since learned the following:
CUDA is not supported on Tegra 4, according to this tweet (also here) by SO user "harrism" who works for NVIDIA. It is anticipated for a future Tegra version (same tweet as a source).
OpenCL is not supported on Tegra.
OpenGL ES 2 shaders have always been supported on Tegra and here are some Tegra 2 and Tegra 3 demos with these shaders from our previous work at AccelerEyes.
We're looking forward to running our stuff on the 72 GPU cores though, using our ES 2 shaders. Awesome chip.
Cheers!