Ya, tons of people in Cali are starting to play roller hockey. Our highschools still don't have it as a sport though, or at least it wasn't when I graduated, it was just a club.
I have played it a bit, its a fun sport, but never been huge on it. Thats probably because I always played Soccer, Basketball and Baseball as a kid and Hockey never was a big sport until I started playing it at an older age.