As you can see here, there are already several themes available. The BlackKat, Blood, iKon were done by Rob and it is up to him what he intends on doing with them in terms of distribution. I believe his plans were to release them after the module releases, but I am not sure. The DNN.com theme is only for the
www.dotnetnuke.com web site. The Vista theme, done by me, will be available for download. I will use the same icons and offer it in various colors. I have a couple of versions about done but needs to spend more time testing it, which is something I am having a hard time doing right now.