For some time I've been involved with development for Cava Packager, a tool to package and deploy applications written in Perl.
The project originally grew out of frustration encountered packaging wxPerl based applications where the existing options didn't quite fit my requirement. The project has been through a few incarnations from a purely MS Windows 'free' to use application to a commercially licensed version supporting MS Windows, Linux and Mac OS X.
The latest release has re-adopted the original 'free use' model. Commercial level support is still available separately, but we have separated commercial support from usage and licensing entirely.
Cava Packager does remain closed source and so is 'free beer' without usage restriction.