Um, not really Japan related, but...
While driving around in the States last July, I rented a car with XM Radio; Satellite radio, with no CMs! I loved it.. Well, I just discovered their site has a lot of streaming channels.. Although not all of them..
I've been listening to it all day with the iBook linked to my stereo.. Very clean, no rebuffing, and LOUD!..
Just wanted to share:
http://www.xmradio.com/programming/full_channel_listing.jsp?sort=number
Oh! There is a connection to Japan! Albeit verrry small.. A feature artist on The Move channel (80) is Japanese! Satoshi Tomiie..
http://www.xmradio.com/programming/channel_page.jsp?ch=80
Haven't listened to it, but MX even has Left and Right talk radio channels... Great! Nothing like separate channels to keep the world separated!
I've mentioned it before, but Samuri.fm is pretty cool, too.. And local: http://www.samurai.fm
Anyway.. Have a day..
GJ