Despite what Comcast says, I don't like this deal, not a bit. Here is the key point:

"NBC has been careful not to put too much cable content on the Internet. We think that's a smart strategy...

It's simple logic. Comcast, under their current business model, has little to gain from pushing Internet TV forward. They will do enough to prevent people from freaking out but they will hold things at bay. I think a distributor like Comcast owning the content is a conflict of interest and not at all consumer friendly. This is good for nobody but Comcast.