I've read that the HD 4000 integrated GPUs in Intel's Ivy Bridge support OpenCL, but does anyone know whether OpenCL can actually be used on the latest (Mid-2012) 13" MacBook Pro with Ivy Bridge (and without discrete graphics)?

At this point I'm exclusively interested in programming OpenCL only for educational / exploratory purposes, by the way; I don't mind that OpenCL on the HD 4000 wouldn't be able to keep pace with an NVIDIA card, as long as I could compile and run code.