WordPress have added a Commercially Supported GPL Themes directory to the themes area of WordPress. There is currently 9 theme websites displayed in this commercial area : Pro Theme Design, Jestro, iThemes, Press75, StudioPress, Spectacu.la, Themeshift, ThemeHybrid and WooThemes. Though I have no doubt that this will encourage many more commercial theme sites to adopt the General Public License due to the exposure that WordPress can give them.
To be included in the commercial theme area your theme site must :
- Distribute 100% GPL themes, including artwork and CSS.
- Have professional support options and optional customization.
- Your site should be complete, well-designed, up to date and professional looking.
To celebrate a few folks creating 100% GPL themes and providing support and other services around them, we have a new page listing GPL commercially supported themes.
Link : Themes are GPL, too