Has anyone made a QR Code reader application for the N800? Ideally, it would support the built-in camera for direct capture of the QR Code. But even if it can only read image files saved using the camera application, that would still be helpful.

Also, is there a way to change the default application that launches when you pop out the camera? It's really annoying to have it auto-start the video chat client which I never use. I'd prefer it not launch anything, to be honest.