If you launch the XDMCP Chooser from the login screen, and then use
the gesture listener framework to launch gok (via the control-k gesture),
then hit the Cancel button, then the Chooser program exits, but the GOK 
program never exits.  Making the computer unusable without restarting gdm.

Also, I notice that since gok uses gconf, that the gdm gconf process is
still running after the user has logged in.  It would be nice if gdm killed
any such processes created by the gesture listeners before logging in the
user.  This might need to be a bit clever since you might have a situation
where a user is logging in on the console and a second user is logging in
remotely.  The gconf process probably shouldn't be killed until the last
gdm GUI program exits.

Note, to turn on the gesture listener framework, the AddGtkModules should
be set to "true" and GtkModulesList needs to be uncommented (note that you
may have to change the value of GtkModulesList to the include the full path
of the GTK_MODULE libraries if the modules aren't installed to the same
location as GTK+'s modules - if you used a different --prefix when
configuring gdm2 vs gtk+, in other words).