If you use those speakers as zone 2 mains, then I believe the Yammi can do it. you'll have to go into the Yamaha's setup and change the speaker assignment each time you switch between movies and music, though.
Have you considered adding a powerful sub to your system and just using the W22s as your mains? I've got M22s and an EP500 and am completely satisfied with their performance in movies and music -- even though I've heard excellent full-sized floorstanders. For my room, sub + bookshelf speakers is the only way to go.
