Well said. And the reason why Apple can make these demands is that everyone wants to carry the iPhone. If Microsoft makes the same demands carriers will simply tell them to stuff it. They couldn't care less about carrying the latest Windows Phone. The fact that AT&T is a premier partner is more about the company hedging it's bets than it is because they're trying to grow market share for Microsoft.
Yesterday I was at a UX conference and heard the same thing reiterated that I've heard many times in the past. This online retailer stated that iPhone users spend far, far more than Android users. They went out of their way to build an Android app to see if user experience was the hindrance. It made no difference whatsoever. This is one of the big reasons why everyone will continue pushing the iPhone harder than even Android with it's dominant marketshare, because it's users are willing to spend money.
If it turns out Windows Phone users are also cheap, it's not going to bode well for the platform. I think people are hungry for a proper iPhone competitor, but they don't want to see yet another Android. Of course, currently Nokia seems overly focused on the low end of the market. I'm already seeing echos of the same kind of cheapness, people complaining about $3 games.
Which is funny, because I'm actually quite cheap myself. But I can't deny the reality of the marketplace. What Nokia/Microsoft need is a proper halo phone. Not a 920 with an extra nice 41 megapixel camera, but a proper, cost is no object, thoroughly conceived halo phone. It's similar, in principle, to how Lexus introduced the LFA. That's a US$400,000 car that few of us will ever see on the road. But it's a brand building exercise. The fact that it exists enhances the perception of the entire brand. The Lumia 1020 is a nice phone, but Microsoft needs to beat the iPhone at it's own game. They need a device so impressive that people might start looking beyond the negative perception Microsoft still is burdened with.
Once that happens, then they can start making demands of AT&T and Verizon.