I used to work at Trolltech, and one of the strengths (at least back in 2002-2005) was how close development was to support. When I started devs had to spend one day a week doing support. It meant you got direct feedback from the people who used your code about what was the major areas that needed fixing, and trust me, you need at least some of that to avoid becoming an ivory tower, feeding that even via one support person muddies the view. Even when dev no longer did support directly when I was there I still kept an eye on the longer email chains to see if I needed to be more directly involved, to the point of initiating a teleconference with a customer in one instance.
Now support isn't even in the same company.
Now I'm outside the company, and I find that even before this announcement some of the trickier support issues just get ignored. I can't give too many specifics as I'm working for a commercial project, but I've done maybe 60K AUD billed hours of work on Qt that hasn't gone back into Nokia and doesn't even give feedback onto why I needed to to so anymore just because of how ignored I found even the fixes I provided were treated. Thats patches for bugs folks.
Now support isn't even in the same company. Yes, worth repeating.
So explain how Digia can give "Top Service" when they have to themselves negotiate to get any fixes they do into Qt. When they by definition don't employ the people who are developing the current features. Sure, they can re-read the documentation... but thats only the support that gets you started, I wouldn't call that "Top Service".
The very fact that there is now an additional layer between Qt support and Qt Development is going to affect developing Qt. I can tell you though as an existing commercial licensee I do not find support a reason to renew my license with Digia, not in the slightest.