I suspect the market is taking a 'wait and see' approach to Nokia, to see if Windows Phone 8 is the success the company needs it to be. Their Q3 is likely to suck a bit after the "no WP8 for WP7 devices" news.
By the information available so far, it looks to be a very good consumer OS, and has an excellent chance of mopping up all those business customers who are giving up on RIM. WP8 really is going to be the next best thing for enterprise, with excellent Office / Outlook integration, hardware encryption, secure booting and sideloading via Company Hub.
I await the haters who are desperate for WP8 to fail, but can't really give a good reason why. The reasons to not like it are disappearing fast.