Try getting things done on such a device in a military context. A thousand acronyms adopted by generals who dont know the internet from a hole in the ground. I saw a Gunnary Seargent scream when he saw his rank acronym (GySgt) get autocorrected on a form to gynocologist (i suspect he hit a suggested word popup). It is bad enough having to deal with the keyboard rejecting capital letters in the middle of a word.