I've used the "disappearing button" trick in one situation that I think is appropriate.. a registration button.. once the app is registered, you never need to see that silly thing again. :)
I agree with the statements about leaving it there, but telling the user why it doesn't work if they click it. Not only does it seem more stable and less confusing, but with such a small screen and the fact that most users don't RTFM, you should take every advantage you can of letting the user know how to use the application. -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/
