The Pangu jailbreak has been released for both Mac and PC users. You can grab it here. If you have questions, please use this thread or create a new one in the jailbreak section of the forums.
Wow, that was fast! It took about 60 seconds to complete. I ignored the recommendation to do a fresh restore if I had a lot of data on my device. I had 1.8 GB free and it worked fine.