Open problem: optimal calculator keyboard layout based on key usage statistics

[Allen]

Possibly useless idea:
Surely with all the ROM Byte code we have in such masterpieces as the PPC rom, we could disassemble the ROMS in the library and run statistics on what keys would have to be pressed to re-type all the useful programs?

I realize that might result in some unnecessary entries like END,GTO, and LBLs (or some of the ALPHA strings related to program flow/execution) that might not actually be a part of every day use, but surely a good percentage of each ROM would actually represent the kind of calculations people do manually and would want direct keys for?