[cfaulk8]

Is there any sort of "add-in" that can be installed on the Blackberry Curve that will allow programs to run that are normally run on a Windows Mobile PDA operating system?

[Dubdub]

Nope. Two totally different operating systems. If you need a WM app, you will need to get the BB version.

[takeshi]

Even if there was -- emulators typically involve a major performance hit.