Was looking at a Slingbox Pro-HD to stream HD from my 622 to my Mac Pro. Was about to order today but saw and read about the upcoming 922 and stopped dead in my complete Amazon order tracks. I know it's too early to know for sure (or at least I can't find the info) but will the 922 do Sling HD or just Sling SD and also how much will it cost to upgrade to 922? Who here is using a Slingbox Pro-HD with a 622/722 and how well does it work and any other general impressions you have? I would love to have the Slingbox Pro-HD before the Super Bowl but looking at the 922 is already giving me (pre)buyers remorse.