Hi all,
After shifting keys around some time, I found a solution well within the keyboard of the coming 35S:
You'll find all the scientific functions in 2 lines of keys top left. Around ENTER, there is the classic layout of register and stack operations. On the right, below of the cursors, you find the keys for programming. The shifted keys 4 through 9 are for mode and base setting. Combined with the right arrow (unshifted GTO), they perform conversions.
This proposal allows for reusing at least the 35S housing and keys for some further development.
Oh, and for those members of this forum suffering from an allergy to diamonds, a slight modification may be more favourable:
However, this would leave the 35S's keyboard of course.
Both proposals would work with the poor old 2-line display of the 33S, too, but it would be a pity IMHO.
OK, now it's your turn again :-) but remember, if you want different functions, please tell me what shall be omitted for them.
Edited: 25 June 2007, 12:36 a.m. after one or more responses were posted