Hmm, your letter sized information sheet is useful and looks good! I'd like to have a printout twice as large without buying special paper, cutting or redesigning. Could you just print on the 2xLetter that I use all the time then?
Another question, if I may, when is the last time you needed to know how big a sheet of paper is when not working in a program that will tell you or a sheet and a ruler at hand? Would knowing the size to 3 millimeters have been precise enough on that occasion?
Let's try another one. What's the margin of error on your letter paper, and has it ever been a problem?
If your company requires your phone to not be rooted you can't install any code that requires rooting. This doesn't affect GPLv3 anything, it can even still be shipped with GPLv3 code as long as it's user space/the device can be rooted by the owner (be it you, or your company), even if you opt not to do it.
GPLv3 requires that any GPLv3 code shipped on the device needs to be able to be replaced by modified versions, it doesn't require the device to be in a state ready to accept such modifications without additional intervention.
He has not acquired a fortune; the fortune has acquired him. -- Bion