Mono has released version 1.2.6 and it includes a lot of good stuff. One big addition in 1.2.6 for Mac fans includes a native Winforms driver for OS X that lets Winforms-based applications to run without X Server. This is good news because it means better performance, and will allow future themes, and deeper integration, including the use of other Carbon APIs, better drag-and-drop support, docking icons, and other interface improvements.