Tying

We just covered tying today in antitrust class -- the "old tying," with Microsoft and related cases coming up next week. With regard to tying, is it me, or is there an extraordinary glut of academic writing on this topic in recent years? It's as if tying is the new predatory pricing -- there is a gold rush afoot. Commentators may well sense that the window for suggesting things to do with the awkward per se rule is fast closing.