So, this will change basically nothing about Twitch? I assume all of their infrastructure is already on Amazon, so probably more business as usual than having to move everything on to Google's infrastructure (which seems to usually derail product development for 3-6 months on most acquisitions).
Based on earlier reports of Justin.tv's streaming architecture[1], I'm going to say no.
Granted, that article is old, but I think a pretty serious investment in physical infrastructure has been made by Justin.tv/Twitch. So I'm more willing to believe they're still leveraging some variation of this architecture rather than AWS.
