The UPS man delivered a package from Amazon (the Belkin Rockstar, mentioned here). He handed me the electronic tablet/scanner for me to sign, but when I grabbed it, the signature screen was no longer visible.
“Sorry, I don’t see the signature line.”
“Yeah, that happens all the time. The most comfortable way for a right-hander to sign means they grab on the left and hit this button by mistake.”
He handed it back to me and I was careful to keep my thumb out of the way.
I wonder if UPS, when speaking to the tablet designer about the next revision, will solicit comments from the route drivers. They seem to have an innate knowledge of interface efficiencies, from the optimal load-in of a day’s packages to the placement of buttons on their most important tool.
And if Amazon learned the same lesson about the Kindle, maybe the next version won’t place the page button below the natural resting position for the left thumb.