A decade or more ago, I bought a little digital camera at Walmart for $20, a Sakar Gear To Go Digital Still Camera. To see the pictures you had to run some sort of proprietary software, apparently on a Windows computer. I could never get it to work, and my old Windows 95 machine didn't even have a USB port. Even my first linux computers couldn't do anything with it. The OS didn't even recognize it as a USB device. But yesterday, fresh from a successful OS upgrade, and on a whim, I plugged it into...