With netnewswire available for free (with a lot more features, I might add), this was only inevitable.
Now, if only DW will rethink his stance on xtorrent being shareware given that many other bittorrent clients are vastly better and also free (rtorrent, utorrent, azureus, transmission, ...). Maybe some people are into paying for shiny interfaces but I don't see how he can be that profitable selling things where there are better and free alternatives.
Plus, while he might be some UI genius, his customer support skills are unimaginably awful.