Talk about overkill...
Since we work on some quite potent compounds here I was becoming concerned about taking my old faithful calculator in and out of the lab (even though I'm careful not to use it when wearing gloves). I thus asked our administrative assistant if I could have a second one. On Friday a box duly arrived from the office supplier. Instead of the basic Casio I expected it contained a TI-89 Titanium. Yikes! It will take some getting used to but it looks like a lot of fun. I'm hoping it doesn't fall into the gap of Too complex for a calculator but not enough functionality to be a mobile desktop. I have switched off the "Desktop" and I'll probably delete some of the more obscure applications (2,201,911 in FlashApp!) but so far so good. I may eventually end up switching to PedroM for all its GPL goodness.