5GB free, upload your MP3's, then stream on the web or Android. Right now if you buy an album, you get 20GB for a year. I just bought Miles Davis' Bitches Brew with John McLaughlin. Not a bad deal! Hopefully they come out with an iOS version, though I kinda doubt it.
Wirelessly posted (Hivemind: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148a Safari/6533.18.5)
I'd LOVE that for iOS, but like you said, unlikely