Creating a parent directory when converting/renaming a file works now.
Formatting a drive as WBFS is now supported.
This is the first version of Witgui that works on Snow Leopard, Lion and Mountain Lion. Accessing WBFS partitions on Lion is now supported (all unmounted partitions get listed as a potential WBFS partition; trying to open a listed non-WBFS partition will simply cause an error).
The details popover is automatically updated when the selected game changes inside the same window.