Anyone actually use these things? Do you scan them with your phone/tablet if you see them?
Depends on if I'm interested in what they're on or not. I uses Google goggles and it does a great job recognizing these as well as text and even some images.
It's a good way to save stuff for looking up later.
“Though I could not caution all, I still might warn a few; Don’t lend your hand to raise no flag atop no ship of fools.” Robert Hunter
I know what they are, but never use them.
Used it to load Gator's steel composition database once last year
David (WildBoar's Kitchen)
We had a Christmas cookie recipe contest at the paper I work at. The winning recipe was sold at Central Market here with the proceeds going to a our goodfellows charity. In central market we had QR codes on all the signs and posters in the store that linked back to the winning recipe online.