I'm on AT&T. I had downloaded 4.1.2 a couple of weeks ago, and it screwed up my contacts list and a minor screw-up to the Music Player (which only appears in the notification window if you have the Player on a list of titles), but I just noticed it yesterday. It would be nice if, when they do updates, there could be a place to see exactly what changes have taken place, like they do with new versions of Firefox. Thanks for your confirmation.
Well, I put this question on another forum, and seems there IS a setting to get it back. Go to display, then PAGE BUDDY, and make sure it is enabled. You'll get something a little different than before, but it's basically the same, and the earphone icon will return to the notification page. Crazy.