XanderChaos, the main author of Willowtree, is creating a better and less unorganized version of Willowtree. You may have seen him or other people post pics of it in posts.
too bad the quests are still breaking the PC version. He is still toying with a few things though cause the import/export dont work yet, just have the buttons there for the sake of design. Im just hoping he changes the way the list on the right side works, left clicking to bring up the menu on the part just seems wierd to me.