I don't think Microsoft has gone far enough in the glance-and-go direction. The system still needs another form of alert so I don't have to turn on the screen to check notifications. The tiles feature, as brilliant as it is, still can't keep up with all the alerts that a true notification center might be able to handle. If those features were included in Windows Phone it'd be my go to device right now. As it is, I've abandoned phones and switched to tablets entirely.
Do you think they'll ever start offering more access to the lock screen and what is displayed there? I know that doesn't really directly address your want/complaint, but I was thinking this morning about the multiple push notifications I get for individual news items from some apps, and I wondered if third-parties will ever be "granted" access to display lock screen alerts?
I don't think I even know how to market it but when I show my friend's they like it, but wouldn't switch phones for it.
Anecdotally, the only people I've gotten to "switch" to WP7 have been first time smartphone users and those who upgrade from an old iPhone and aren't embedded in the ecosystem.
Really, unless a current Android or iOS user WANTS to try something new, there's not much point in them switching over, right now.
While MS is clearly behind in ecosystem, I think they've bested iOS/Android when it comes to UI. I know UI and feature teams are typically kept separate, but a UI redesign takes resources, and there's always the chance MS can "catch up" when Apple (inevitably???) has a modern UI redesign/update. Clearly, however, the public isn't clamoring for an iOS redesign.