Zune is completely separate from Playsforsure. People are confused, lets write down all the facts for them now:
1. Zune does not use Windows Media Player, its marketplace and sync software are completely separate but I guess it might be possible to playback songs in WMP11. Yes Zune is an end-to-end service locking you in jsut like Ipod.
2.Playsforsure uses third-party hardware manufacturers making devices like Archos 402, Iriver Clix, Creative devices, Tishoba Gigabeat S, some Samsung thing.
3.Playsforsure still have music stores like napster available. Playsforsure uses WMP and WMP11 has MTV's music store Urge integrated which is a playsforsure music store and it is not going anywhere.
4.Zune and playsforsure are able to live side-by-side whether the businesses decide to continue to support it is a different matter but I think they will because many people don't want to be locked in and will stick with playsforsure.
Benefit of Zune - same as those of Apple except Zune has a subscription service.
Benefits of Playsforsure - allows music to work with many different kinds of music player and lets you upgrade to a different music player in the future without losing your music. as long as both players are pfs compatible.