I’ve never used this package (apparently its used for HDTV scheduling/recording on Linux), but this link on Slashdot caught my eye: http://sourceforge.net/developer/diary.php?diary_id=26407&diary_user=147583. Apparently, the developer of this software package is seeking to revoke the GPL license not just for his current code, but his past code/package as well. I have a difficult time believing that this is possible, but I’m sure we will soon find out. My guess is that this guy is productizing his software and has a good idea who is currently using, selling and distributing his source so there will likely be some kind of legal challenge to the GPL as well. It’s always interesting to see how these kind of things play out in the U.S. courts which can sometimes be a little schizophrenic, though I’d have a difficult time believing that this type of retroactive license change is actually possible.