I have just released my first PDF here on Paizo. The Monk Unfettered. It is a complete reinvention of the class over 38 pages that is designed to give the monk vastly greater diversity. The core changes are to the flurry mechanic and consolidating a large set of class abilities into insights (akin to rage powers and rogue talents).
On Jerall Toi's blog there is a sneak peak of some of the content and art assets. Have a look! Even with the imminent release of Pathfinder Unchained upon us, I think the book is a valuable addition to any campaign.
Let me know what you think. Any questions are welcome!