While waiting for the tram at the local tram stop I noticed a paper with a 2d barcode, more specifically an "UpCode". The local public transport company (HKL/HST) running the trams now has an exciting new service for your convenience based on the latest innovations from Finnish mobile pioneers such as the revolutionary and interactive UpCode, making use of camera phones, built in browsers and 3G to really make you part of the information society.
You can install a special Java or Symbian application (well, a few people can), get down on your knees to be close enough to the symbol, launch the upcode application, hope it starts without problems and is able communicate with the camera, snap a photo of the upcode, hope it is clear enough and - like magic - it will take you to a web page without you having to manually punch in the tram stop number "0105".
However, just in case one of the steps mentioned above fails, or you don't want to stand on your knees hoping for a clear picture, they have that number printed in plain text as well so you can punch in the four digits manually.
I wonder what the companies that did NOT get venture capital funding where trying to peddle.