I'm running a C1000 under pdaXrom and rdesktop is a great little application and it works great, too great really. When I launch it in fullscreen mode, I'm literally in fullscreen mode of my remote desktop and I see no way to close it or exit out of the application.
Strangely, pdaXrom does not seem to have man pages (or at least, the man command doesn't work, that could be me having a PATH issue). In any event, I can't find any documentation on rdesktop to give me any clues.