> the enthusiasm at e.g. Samsung for making Windows Phones have gone down quite a bit...
It's probably part of their IP licensing deal about the secret patent list Android violates. They pay less per Android phone if and only if they build Windows Phone devices.
How would that make any sense? Microsoft would be essentially paying Samsung (by not collecting licensing fees) to just keep 1-2 phones that barely sell / are available in the WP8 ecosystem. For what? Just to say "the biggest smartphone vendor uses our software"? How does that help anything?