Of course you don't see the problem - therein lies the biggest problem. No solution for their cheaper phones once phased out. No solution for areas that don't have the Zune marketplace quite yet - necessary for WP7. Surprisingly though, there's a N5 coming, Symbian based - remember when the N8 was to be the last N-series Symbian phone? - and other Symbian phones in the meantime. They can deliver those now.