The N9 wasn't the most successful mobile phone handset that Nokia ever launched — its chassis was stolen from it in the UK market to be used for the Windows Phone-powered Lumia 800 — but it provided evidence that the company could still innovate and provide fresh ideas of its own given half a chance. We doubt Microsoft is going to ever want to fragment its mobile phones operations at all, but at least is shows that Nokia knew how to make a decent OS, and that's going to be gold dust when it looks to polish Windows Phone.