Hey, i just registered because i saw this and i wanted to post this suggestion:
I made an image to help, since the letters are on the faceplate, or body, swap teh buttons so that there are teh numbers in teh middle of the thing, and edit the OS or make a pogram or something liek that to change teh function of:
Realbutton -> What it does
5 -> 9
1 -> 8
4 -> 7
, -> 6
^ -> 5
Tan -> 4
/ -> 3
Log -> 2
Apps -> 1
If you understand what i mean, heres how i think the layout should be:
Remember: What im suggesting is only swapping the function of whatever is printed on the button, ex. im my pic above, 2nd + (+) doesn't bring up the memory menu, 2nd + Log does, because both MEM and " are on the same button.