I was there (in Toronto) and from what I could tell of the audience reception, and in my opinion, the only negative of note was the amount of time the US market will have to wait for their foot-dragging carriers to make the product available.
They skipped numerous items that could have been included -- DLNA, more of the system apps (BB Protect, Maps, etc) -- but there's only so much you can pack into an hour, and if you put in too much you'll just overload the audience (which everyone here should remember was NOT us developers... we can take an hour of dense technical stuff but the public certainly can't).
As jtegen said, it's mainly marketing at this point. Watch how the UK reception is in the next few days, and how the Canadian market picks it up next week. I have relatively few concerns left at this point.
To some extent, you have to realize that the main expectation yesterday for many was that they would completely face-plant. They clearly did not. I call it a big win for that reason... despite the stock market's reaction (which one should largely ignore, since it's just a bunch of people betting on horses really).
