So, like a scaled down space-cadet keyboard. ;) Looks neat for people who write a lot of scientific papers.

With 3 modifier keys, this offers 8 potential modes. What's done with the other 2?

Why only 12 keys and 3 modifier keys? Granted, 6+ modifier keys of the SCK is probably 1 or 2 too many.

Also, I miss graphing calculators / CAS like the HP 48 where math symbols were (usually) easier-ish to access.