The only impact 360 likely had (given the business nature of the review) is the confusion around MS overall strategy when it got into consoles, etc.
I can tell you that in the company I work for (very large US based tech company and competitor of MS) our PR and Marketing folks love the whole diversion into entertainment as it makes MS an increasingly easy target from a business point of view - over diversification, loss of focus on core business, high chance of failure in new areas and the fact that MS has gone from being number 1 in a core business to a more shaky number 1 in that core and number 2, 3, 4 and below in other areas.
In entertainment their brand is probably actually a little better than it was - but only in comparison to themselves, they are still literally miles behind Apple, Sony and Nintendo brands (to name a few) in this area.
Try to be reasonable... its easier than you think...
