I'm excited about it as well, because i've got enough .22 semi auto carbines, and don't feel like buying another 10/22 to make a .17 HM2, when i'm sure the 717 will cost about the same as a barrel and bolt handle for the 10/22.
But they sure are taking forever, almost wish no one would tell you about these things until they were ready then wham. What a new corvette?? why didn't i hear about this... oh that's nice.