Current HelpDesks are built/designed for internal use only.

Request: HelpDesk with unique user interface for customer to log in to view their own tickets, update them, close them if no longer an issue, Add comments. Therefore Helpdesk and Client share responsibility of ticket list = partnership).

In todays online business world transparency in the supply chain is vital for improving overal efficiencies ( reduce costs, reduce time required, increase speed, reduce lead times, reduce repetitive communications) and gaining that vital competitive advantage.

You can setup up Xhelp to be wide open, you can see it set up for registered users on my site below:

http://helpxoops.info

If you want it wide open you can do that... although I think you might be opening yourself up for SPAM and trash problems.