Rin is a free and open source theme for WordPress. Rin is operating under a GPL license. The idea with open source basically means that youâ€™re free to do whatever you want to it. When you release it however the license stays the same and proper attribution is given to each author whoâ€™s modified it since you started playing around with it.
Pros: Rin is supported by its developer, looks great, and is easy to customize if you know your way around CSS.
Cons: No Photoshop template included.