• Qt

  • I've been using Qt for a number of years to develop GUI applications on Linux. And have recently completed a number of applications which I've cross compiled to run on Windows, Linux and OSX.

    Sample Qt Application on WindowsSample Qt Application on OSX

  • Mono

  • Mono can be used to run both GUI and console based applications on a Linux system. This is often useful if you have ASP.NET web services but no Windows machines to run them on.