I suspect Nokia is very different. In fact, I think if the schedules had been different, Nokia would have been the sole hardware provider for WP.
I doubt they would jeopardize that for a Nokia exclusive. It's not really in Microsoft's DNA.
http://www.wpcentral.com/no-new-dell-windows-phone-75-device...
MS may have had to persuade Dell to make a phone, not the other way around.
It's mostly a bug fix release, but there's one big one- the keyboard keeps disappearing when you're typing on it. Infuriating. I had to force update my phone.
I've enjoyed Handspring Visors, Palm Treos, Samsung Blackjacks, HTC Touch Pro with Windows mobile and they all have their pros.
My last experience with Windows Mobile on the HTC Touch Pro was severely suffering on the older windows mobile, with no prospects of a new OS in sight.. I'm glad the new OS sounds to be better addressing updates.