Why do we sometimes like to re-invent the wheel? Maybe that’s still okay if you’re making a better wheel, but what’s the point of driving up hype on yet another wheel, or worse, an inferior wheel? Case in point: ZapCode from Singapore Press Holdings. It’s basically a 2-D bar code. How very fascinating. But hey, 2-D bar codes have been around for like over a decade or two. The most popular ones in use today are Data Matrix and QR…