I love my HP-50G calculator, although I think they could improve the screen a bit... I'd appreciate higher resolution, faster refresh, maybe color. However, ha

I love my HP-50G calculator, although I think they could improve the screen a bit... I'd appreciate higher resolution, faster refresh, maybe color. However, having completed all the math and science courses for my degree, I'm not using the HP much any more. Usually it's more convenient to fire up "bc" instead of hunting up the calculator, despite the limitations of bc. Oh, and I just can't see smartphones replacing graphing calculators. I like a calculator because it has all those buttons conveniently placed--for most things, I don't have to go through any menus. You simply can't fit all that on the screen of a smartphone and still be able to press the buttons on-screen. I ran an HP-48 emulator on a Droid, and while it was good, it was certainly no replacement for the real thing