Geoff Keighley had an interview with Don Mattrick (recorded pre conference) - here are some excerpts:
Keighley:"Did you know or did you anticipate the way the people would push back?"
Mattrick:"Absolutely - it's a super passionate community of people... till you use it [Xbox One] it's really hard to understand what all the advantages are."
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Mattrick: "Xbox has been created by gamers for gamers."
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Mattrick: "Fortunately we have a product for people who aren't able to get some form of connectivity, it's called xbox 360"
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Mattrick: "The avarage internet connection is working the majority of the day - people are imagining that it isn't... It's change. There was a point in time when people would say all i want my phone to do is make a phonecall."
more can be found here: link
edit:
old link is not working anymore - it's still up on Youtube
edit2:
GT Video is back up again...
edit3: