Because of the dbcache problem described at following link, I will put my custm ROM apps to ROM as INVISIBLE. (meaning they will be in ram but won't be accessible from launcher)

That's why, I want to be able to create a shortcut to apps in ROM.
is it possible to create a shortcut to an invisible app in ROM ?
how ?

another solution is to create an overlay file as in default Treo 650 apps.
(meaning a file named appname_enUs.prc to run appname.prc)
how can I do that ?
(create a simple overlay for any app)

this is also asked here:
without any answer yet...