"Despite promises that this would soon be standard and inexpensive (up to $100 for the feature), it's been a tough trip. Until recently it wasn't available at all in North America, and now it is mostly found using stand alone devices such as GefenTV's streaming devices."Siteroller then goes on to summarize the different technologies and vendors and who is winning and loosing. But in the end his says.
So, it's still too early to say anyone's really winning.
But the sooner these become reality, the better!