@Steve : if you think it should appeal to younger people, then 360 fans should really love Home.
Joke aside, it's a nice service in my opinion, I have a lot of fun in it, and I'm 34.
I love going to the theatre to watch new videos about upcoming games, or devs interview. E3 videos were there too (in a special dedicated space actually).
You know 'second life' was mostly played by adults, yeah ?
Well, here I suspect it's a bit the same, just with games and game features...
It's definitely a success for Sony since they already sold 1 million $ goods in last january (and a lot more by now...)







