The small addition to 0.6.4:
the -StepAction parameter in Add-UIAWizardStep is dropped and two new parameters, -StepForwardAction and -StepBackwardAction have been added to the cmdlet
There was a gap in writing scripts: we had the script recorder from the very beginning, but it was not only command-line (cmdlet), it also generated a lot of code that empeded understanding.
In addition, a small spy application called UIAutomationSpy is introduced. It's now ugly and trembling, nonetheless, it works somehow and helps to recognize a control. Just run UIAutomationSpy.exe and click the Start button, it will display what it can display in the rich text box.