There's a very long Slashdot thread on this as well. Some of the comments are actually quite interesting. Many point to the fact that the artist ripping off someone else's work and passing it off as original is not "theft," but downloading the song is. (Theft in quotes because of the improper use in the first place.)
If there were any brains involved, Janne would get credit, an apology, and some royalties. Of course, would this get taken to court?
Anyway, I have some reading in the other threads to catch up on to see how things are moving along.