Just released on November 1st is a minimal theme for the ExpressionEngine Forum module. It’s called eeBootstrap.
eeBootstrap is a professional theme for ExpressionEngine Forum Discussion Module, is developed with the latest version of Twitter Bootstrap framework, HTML5 e CSS3.
It’s also responsive and customizable the same way a Bootstrap-based site is.
You can see it in action here (looks really nice!) and test it out before you decide to purchase a license for one of your projects.
What I initially like about the idea of this theme is that might make more people use the EE Forum module. Theming it is a major pain and a lot of people shy away from it because of that. This theme makes using the module more appealing to me.
The eeBoostrap theme is $49.50 and available at Devot-ee for purchase.