Osaka wasn't released on CD, no.
The Tokyo gig was announced as being on CD only for those attending the Electraglide gigs. UW tried to stream it live through the underworldlive.com website (if you listen to the live recording, in fact, somewhere in there Karl gives a shout out to all the Dirties listening on the wonderful internet
). As the streaming didn't work for Tokyo, many industrious people managed to get it together for Osaka instead, and that gig was streamed live on uwlive.com.
The Tokyo gig was then streamed after the Lemonworld broadcast just before Christmas. By that time, mp3s of the gig were floating around the intarweb (whence this thread).
As to why people are not talking so much about Osaka, I couldn't possibly comment.
