While going through contest entries, we were bummed that we don't have more high-res JPGs (and laptops) to give out. Here are some highlights that didn't quite make finalists, but got the Honorable Mention award. For which the prize is an honorable mention in this article.
Donald Straney was kind enough to give us a free enterprise-level license for his calculator software. It requires the user to minimize and restore the window to increment numbers or choose operands.
Anthony Bellissimo entered a calculator that works only in 24-bit color. And by "works only in 24-bit color," I mean that it'll run in any bit depth, but it'll only get correct answers in 24-bit color.
David Lees's entry bridges the gap between physical interface and visual interface. Also he should really clean his keyboard.
David Martens and Floris van Zonneveld teamed up to make the least extensible UI ever. This calculator only supports a total of 120 numbers and "Err," including an image for each one. Each image doesn't just replace the display screen, though, it includes the whole calculator UI.
Joe Bott built a console application with procedurally-generated number buttons (that's why they're all fuzzy-looking).
Håvard Skinnemoen's "The Scalable Calculator" exemplifies what a calculator designed by someone with only abacus experience might use. Or not. I have no idea how abaci are supposed to work.
Chris took us for a stroll down memory lane with his DOS-based UI.