a kiosk app is one which once opened the user cannot leave or resize and the normal windows functionality such as the task bar and shortcuts are disabled. Basically once running, the app is the only thing the user can use.
Often they will be touch screen, examples might be a clocking in app for office/factory/doctors surgery, or one a guest in a hotel might use on a computer sitting on the reception desk to to see what facilities are available, make a booking, etc. You also see them used in places like tourist offices.
Colin has an example here
http://www.mendipdatasystems.co.uk/k...app/4594408188