Just to throw this into the mix, I get beta access to a lot of stuff, but they are exercising a very tight level of control on the HS17. Internally, only manager and above can get an HS17 unit, and even then, it's a mess of paperwork, requiring regular written reports on functionality. I've been begging for one for two years now, and have been told that I don't meet any of the requirements to have one.
I keep hearing that they're going in homes in certain markets, and all I can really speculate from that is that they're either going into employee homes for testing, or the markets that are getting them are being used for testing and training purposes, where they're only going into a restricted handful of homes - and have logging enabled with the logs being sent back to engineering for analysis.