Well it worked for Apple's small selection of peripherals. They had the thunderbolt display and the promise pegasus raid, which can both run off a single port. It's just that outside of Apple's small range of peripheral devices, it's not that useful. In August of 2011, people were still complaining that Intel hadn't released an official SDK. I just don't see any sweeping changes in the near future.
Intel is dropping the ball here...I dont understand what the problem is?