Powerbuilder is a nice language but is little propietary and the developer comunitty is not as big as the .NET or Java ones. It imposes some risks on Powerbuilder projects.
That why some shops have started moving some of their inhouse applications to other platforms.
Personally I feel that .NET is the more natural platform for migration. Even more there is now a datawindows.NET component. DataWindows are the core of any Powerbuilder application and using this component really makes it easier to migrate a PB application.
In my following post I will describe examples using the Datawindows.NET component to migrate some PB samples.
For more info on
DataWindows.NET