I think the Lumia 1020 has introduced some pretty awesome features. In fact I think Nokia is the only company (soon to be Microsoft) that is innovating in the mobile space. *I have an iPhone 5 and probably won't switch ... MS needs non-ported apps.
yeah the new Lumia is pretty interesting, as is the new Windows platform. I would be willing to consider the switch once there is truly seamless integration with Windows 8.1, as well as when the app store finally has quality apps.