I recently discovered QR codes. QR codes are two dimensional bar codes that were invented in Japan. QR is short for quick response and these codes really do just that. All that you need to do is take a picture with your cellphone and instantaneously a text message (or whatever kind of message is embedded in the code) will appear on your phone. For me it was love at first sight. I started thinking about all of the possibilities for encoding my neighborhood, writing secret love letters for my boyfriend, or even just for branding and marketing. My only issue with the qr code - for American users at least- is the qr code reader that needs to be downloaded on to your phone in order to use it. Many phones in other countries have the QR code reader built into their applications and such, but for me with my non- ipod phone- it was hell. There needs to be some better system to get the applications on to your phone. I had to hunt down a site that would have the specific reader for my specific phone. This is not so intuitive. It actually is putting a foil on my romantic code letter goals! However, after this hurdle- it is truly a pleasure to play with and it is a fun way to tap into mobile potential without building an appication.