No chance WP7 will end up like the Kin. For one ALL or most of Microsoft services will tie into WP7 and tie in in a meaningful way, unlike with WM and this makes for a very good experience if you use MS services. And no matter how you cut it so far the OS has been received very well overall in the reviews we've seen of the unfinished product, and it will only get better and yes, missing features like copy and paste WILL be added so no need to go all nuclear on that yet again. And also this is effectively it for MS in the mobile space, they have no where else to go so whatever happens they will stick with it.
When you consider all it does have to offer at launch it may start slowly but in 1 year it will be surprising for the naysayers to see how much marketshare they have picked up. I'm in, launch day my HD2 will be getting a new sibling in our Windows Phone family!
Back to being The Last Windows Mobile Fanboy - now with a Dell Venue Pro!