[MACTCL] OSX 10.8 gatekeeper issue

[Zbigniew D. <z....@gm...>]

An user of my starpacked public domain Tcl/Tk 8.5.11 application wrote 
that it can't be launched on the new Lion Mountain and that a dialog box 
recommends to put it in the trash.

Apparently this issue is caused by the new gatekeeper which will prevent 
to start programs that are not encrypted with a licensed Apple developer ID.

A workaround is not to doubleclick the application but to rightclick and 
"open" it despite the warning message but this is just a workaround.

Has anyone solved this issue?

I wonder if a registration fee has to be payed and I have no idea how to 
encrypt a starpack with this developer ID.