I plan on trying to apply for an N950 through the availale channels, personally. I'd rather get my hands on the beta-level -devel device, than get the touch-screen-only shiny. I pointed out why I feel I need a hardware keyboard including phone previously, in the N9 Finally Announced (or something like that) thread...

If I HAD to upgrade, I would seriously consider the N9, BUT as things stand now, I'm happy with my N900, and if I don't get an N950, an N9 wouldn't be worth it for me - regardless of whether or not it's 2 years old and outclassed by most competitors hardware-wise.