Definitely a useful toy, as I use a calculator all the time in ICU medicine. It is battery powered, which is a bit of a detraction, but even worse, there is no "off" button. That makes it tough to think about relying on it. Still, a good idea.
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The toys and trinkets with which drug companies make themselves known to physicians
I used to try to update this once a week, but I've slowed down a lot now that pharmaceutical companies no longer give out toys (at least in America, I don't know about internationally), and that I'm a medical resident with much more limited free time. However, if you've gotten something fun or egregious from a drug rep, send me a pic and I'll post it. That and all other questions, comments, complaints and concerns should be addressed to drugreptoysblog@gmail.com.
Cheers.