Can we have RPN back?

[Joe Horn]

(03-30-2014 04:42 PM)HP67 Wrote:  The ENTER key should be midway up on the left side of the keyboard.

I disagree, and here's why. On Prime, press and hold down Enter with your right hand. You can still see all the digit keys; your hand is not in the way. Now (also using your right hand) press and hold down ENTER on any other big-ENTER-key HP calculator. You can't see several digit keys, because your hand is in the way.

So having the ENTER key on the left side always seemed to me to be a design mistake for right-handed people, since you can't see what you're going to press next while pressing ENTER. This slows down the user. Ditto for the arithmetic keys; it's nice to be able to see the next number's keys while performing arithmetic. Prime has all 5 keys on the right, which (as explained above) is the most efficient side for right-handed people.

Disclaimer: The above is not a religious declaration of absolute truth. It's true for me, but everybody's different, thank goodness. It's definitely not true for southpaws. It's also not true for people who hold their HP with both hands and press the keys with their thumbs.