Agreed. Windows Phone does offer differences to Android, and honestly, there was very little chance Nokia was going to push Meego to the 3rd platform position.
If anything, Nokia probably learnt from WebOS. A great OS is not enough to save your company. You have to have the developer support, and you have to be able to push enough devices. Meego would have been limited to just Nokia handhelds, and the chicken/egg developer problem was very, very unlikely to resolve itself.
No longer having to bleed money on a software division, spending time on getting Nokia's core hardware competency and riding Microsoft's coattails to a 3rd place in the smartphone space sounds like a much better proposition. Nokia can go all-in on WP7 in a way HTC and Samsung haven't, and quickly become the flagship device provider.
I think the strategy makes perfect sense.