Don't want to sound pessimistic, but how is this a great step? Here in the Netherlands the 920 is for sale since January 2012. I know Microsoft is relatively new in the hardware scene and don't want to take a too big chunk away from their customers (pc builders/manufacturers), but coming with a product which is par to a 9 year old product. If Logitech sees this as an actual contestant it will drop it price to the same or below at which both Logitech is again the better option. And fill up the gap between with another product they have laying on the shelf by now. Since Microsoft builds the OS and Windows Hello with that, they shown it off at nearly all their surface devices. Why not come with a decently price windows hello camera? Why go for the standards of 2012?
Yes it's good that there is some serious competition in this market, since Logitech is not challenged to improve anymore. But the product on itself, a basic camera for 70 dollars, don't see anything great in that. I guess we have to see if I have to swallow my words once we see what it can actually do, or what else they are about to release...
Edit: 2012 instead of 2021