Here’s the proof (geddit?) that the worlds of inky fingers and fat thumbs can coexist.
Last week I purchased a 1.5 inch type-high zinc block of the QR code for this blog, http://matt.me63.com. I wanted to see what happens when the beautifully tactile letterpress of my boyhood meets the amazing multimedia mobiles that I work with now. The answer, it seems, is they get on just fine.
That this works is a tribute to the staying power of Daler-Rowney’s Water Soluble Block Printing Colour, which survived 10 years in the loft to produce a perfect print first time, and to the amazing resiliance of the 2d barcode format and my Nokia N82’s 5 megapixel camera, which coped with all but the blurriest of my impressions.
And just listen to the sound of the roller transferring ink to the block – gorgeous :)
Matt Edgar writes here 
This is wonderful, I’m full of admiration.
*applause*
What fun! I am even able to scan the QR code from the video. I found this via the QR Codes in the Wild flickr group at http://www.flickr.com/photos/mattedgar/2578953736/in/pool-24833696@N00/