CoolCalc - Version 2.0 Has four different calculators, plus the ability to customize calculators and create your own. You get a basic calc, 2 scientific calcs (one with RPN, one non-RPN), and a programmers calculator. The customizability of CoolCalc allows you to reposition buttons with your stylus, and change the function, sound, and appearance of each button. There's even a macro feature as well. There's nothing like it! Runs on Windows CE Handheld PC units only.