I think ill pick up a Lumia 710 since my battered 3GS is driving me insane with its constantly freezing touchscreen, then come January ill be upgrading to a 920 provided windows phone is as nice to use as it looks. All the Apps I frequently use are already in place and ones that aren't there have very decent looking alternatives.
Still have fond memories of my Nokia 6500 classic, by far the best dumbphone I ever owned.
I only hope that Vodafone dont fill it with useless bloatware "apps" like they did my old HTC Sensation, from my understanding Windows Phone displays everything on the homescreen like iOS? I didnt mind that on the HTC as they were hidden away so to speak, and I could always root it to remove them but im assuming WP doesnt allow this.