Hi,
The ]po[ team has just completed a new package "Idea Management" that allows users to vote for ideas and to submit new ideas.
We are going to use this internally to priorize our work.
A live demo/system is available on http://www.project-open.org/intranet-idea-management (main page) and integrated into XoWiki at: http://www.project-open.org/documentation/project_open_roadmap.
The idea generation part is connected to the ]po[ helpdesk, so that the internal organization can easily assign, escalate and otherwise bulk-process the idea "tickets".
The package is covered by GPL V2 or higher. It required ]po[ V4.0. Please let us know if you would like to test this on your own server, as the upgrade from V3.5 to V4.0 has still some issues.
Please let us know what you think.
Cheers!
Frank