NFG Games' QR Code Generator

BoingBoing reader Lawrence says:
In Japan the QRCode is becoming wildly popular, for everyone with a celphone has a camera that can read these 2D barcodes and inst-o-magically input pre-formatted emails, contacts, URLs and even random text. I've put together a script, suitable for Mozilla sidebar or Opera panel fun, that generates QRCodes for any purpose, including Vodafone + DoCoMo (I-mode) formatted shortcuts. Create and share - they're like modern hieroglyphics!