Both Lala.com and nuTsie have just provided mechanisms to put your music into the Internet cloud allowing you to play your music from any browser. And in theory, with nuTsie, you can play your music on your phone (although it doesn't work on mine for some reason).
I haven't actually tried this with lala but I think it uploads compressed versions of your music files found on your hard disk, if it doesn't already have them. nuTsie on the other hand just reads your iTunes XML library file and matches what it can with music it already knows about, which presumably excludes much of what I actually listen to. But I'm still fascinated by the concept, as I was back in the day with mp3.com (?) where you registered what music you could stream by physically placing your CD in your computer first.
I have to say it's becoming harder these days to be a consumer without legal counsel. I skimmed through the nuTsie click-through agreement but I have no idea if it is really legal to play my music in this manner. And what if I want to share my playlist to the world, including access to those rare La Monte Young Well-Tuned Piano MP3s? While I'd like to spread the word on that music, I'm not yet willing to be placed in financial jeopardy by my enthusiasms.
current listening: (white man) in hammersmith palais - the clash (via nutsie)
current shopping: the well-tuned piano - 1 used & new available from $859.00 (via amazon)