Open Package Creator

Open Package Creator is a tool to easily package an application in an OPK file, complete with a generated .desktop meta data file.

Grab the latest release on GitHub

Runs on Windows and Linux (with Mono)
For Linux, the dependencies are:
Mono
Mono Winforms
squashfs-tools

This page is still under construction, so please refer to the following sites for more information:
Official GCW Zero web site
Dingoonity forums