I feel like Nokia is trying pretty hard with the Microsoft partnership (at least in the US). They've issued firmware updates and are quickly addressing problems. So I believe they are making their best effort with what they have.

Do I think it was a good idea to partner with Microsoft, probably not. Should have waited until at least Windows 8 for features that are more on par with other OSes.

As for Symbian and Meego being let go, I don't see it as a bad thing. The company was spending way too much money developing for those platforms. They had to develop the core OS and on top of that they spent money developing applications for it because hardly any third party developers chose their platform. What they probably should have done is cut back on application development and focused just on the core OS and increase spending in advertising like they are doing with the Lumia in the US.