Even though the thread is a tad old, I'm a huge fan of what I've seen and tried so far when it comes to WP7. And, from the reviews that I've seen, one of the biggest points that the majority of them made was how fast and stable the OS is. And from trying them out in store, it really, really shows. I'd say that it is, in that sense, far ahead of iOS and definitely Android (which I have to say I was disappointed with, but at least it's improving. However, for what is now a well established player in the market...it will soon border the unacceptable).