Its simple. Nokia should make a decision to stop the Windows phone project. In that case HTC and Samsung would stop it too ?. The only way for Microsoft to continue would be byuing the Lumia project. A proper prize is 10 billion.
Nokia has ZERO leverage now. With Samsung, LG, HTC, and others getting into the WP arena Nokia has become superfluous.
Nokia has raised Windows phone but it could also sink it ?