Well, given how the DOJ treated MS, it is pretty clear that there was very little it could do in terms of integrating experiences without getting sued. Bundle a browser in your OS, get sued. Bundle a media player in your OS? Get sued. But Microsoft is in the middle of a huge culture shift, and it is doing things that are new, bold and targeted, unlike any company in the industry. Google is shooting blanks in every direction, hoping something won't just be a flash in the pan. Apple is cold and consistent, but given their record and how they treat developers, I would be surprised if they don't overplay their hand again. Amazon, on the other hand, is pretty awesome. Besides being a horrible company to work for, from all reports I have heard, they execute hard, fast and generally pretty well.