When It Works, It Works:
After wondering exactly what poor Greg Lapore was doing when he asked, innocently enough, "Why am I receiving an error message when I try to write a demo file from SDL::Tutorial?", I realized that it's because Pod::ToDemo 0.10 was irredeemably broken.
I have no idea why it seemed to work for me, but a bit of diving into the scary details of what happens when at initialization time, a bit of interface redesign, and a few more tests later, and the new Pod::ToDemo scheme in 0.20 is a little uglier for the end-user, a lot simpler for the basic, default case for the coder, and, most importantly, a working release.
Of course, you'll need the latest SDL Perl snapshot for the updated tutorials, but they're there and work now. Hopefully Dave will soon pull the patches for the new release he's threatened.