WinMo 6.5.3 is a big step in the right direction.
The biggest changes to WInMo include new enhancements to the user interface that make it more finger friendly. There are new software buttons placed at the bottom of the screen that are much easier to find and interact with than before. There is a drop down dock that provides easier access to a number of system tools. The software QWERTY keyboard has also been somewhat updated with better access to alternate characters and key configurations.
The best way to convey these changes is to check out the video below: