Someone on Twitter tomorrow asked for some advice on things to see and do in Tokyo, so I thought I'd write a bit about my trip in April of 2006. At the last minute, my employer asked me to attend a SIP interoperability conference in Tokyo. Since I had never been to Asia before, I thought it would be a pretty awesome trip. Derek and I left Vancouver sometime in the afternoon on a Saturday I believe, and we landed in Tokyo 10 hours later. Narita airport is actually more than an hour outside of Tokyo, so ...

I read an article this morning that made mention of QR codes, and to be honest, I had never heard of them before. After doing some research, it appears that QR codes are essentially two-dimensional bar-codes that are fairly popular in Japan. A user with a camera phone can simply point their phone at a QR code and, assuming it is QR code aware, will decode the symbol. QR codes can be used to encode URLs, phone numbers, text information, and SMS messages. So you can have an advertisement and simply put your URL as a QR code. ...