lol ~ the thingamajig is called a QR code.
I haven't used one, but I need to try it out! There so many amazing applications. For example, a friend of mine is a real estate agent and she uses these for her listings so clients can "suck" up information about the listing into their phones.
I have a blackberry torch. I love it! So far, I've mostl downloaded the free aps. I use alot of the games, and found some great kid games too. I paid 99 cents for a great trivia game, and have since downloaded the canadian and entertmainment question expanasion packs. It will definitely be put to use on our next car trip.