I already subscribe to Zune Pass and love it for the ability to discover music using a subscription service. You just download whatever you like and don't have to worry about the cost. Don't like the music? Doesn't matter … just ditch it.
It just got better!
Now you get 10 songs a month (MP3 DRM free to boot) to keep forever included!
This has got to be the BEST deal out there.
For $14.99 a month you get $10 worth of music to keep AND all the music you want to download on subscription.
So if you are buying 10 songs a month anyway its like getting all the rest for $4.99 a month!
You don't need a Zune to use Zune Software (which I find WAY better than other stuff out there). At the moment you can get a 14 day trial of Zune Pass here.