The Final Product was built in XAML (Extensible Application Markup Lanuage), part of the Windows Presentation Foundation (WPF). We were in a hard core .NET shop, so people were pretty excited about this.
I was able to refine the design and conduct further testing as work progressed.
The underlying model for the design, and clear visual consistency, means that as this product evolves it will remain functional and fun to use for quite some time.