Kiosk Question - Lock User In

[Sivakatirswami]

Looks like we have some fun-interesting dev ahead of us
as there is a request to create a Kiosk style app here for
all our visitor traffic to interface with... Rev is obviously
the best tool.

I have some basic questions

This will run on a little white 13 Powerbook - Mac OSX

How do you lock up the machine such that once you boot
the Rev app, which will be set to take over the whole screen,
no one can do anything else but interact with your app.
i.e. a savvy use could hit cmd-tab, call up all running apps
and choose the finder, hide your app and there she is, face
to face with the finder-entire-machine and not your app.

Then of course we need a way for admin to click on something
and then be granted access to the whole box again.

TIA
Sivakatirswami