OK, I'll admit that color barcodes are cool, but there's several problems with this: * There's no compelling usecase that cannot be accomplished with existing

OK, I'll admit that color barcodes are cool, but there's several problems with this: * There's no compelling usecase that cannot be accomplished with existing technologies like QR-code. * Routing all Tag traffic though MS systems is just asking for abuse. For instance, with this setup, MS could retroactively yank a Tag that they didn't like. * As others have pointed out, there's still a lot of black-and-white only printers out there, so without support for a fallback scheme, you'd need both a Tag and a QR-code app on your phone. * Is the color barcode technology patented (forgive me if I missed that in the article)? If so, then that shuts out alternate implementations. What if MS decides to pull an MSIE for Mac kind of stunt and pull non-WinMo versions of Tag once it gets popular? I don't mean to be an ass; MS Research came up with yet another great idea. No, my problems are with the productization of the color barcodes.