The electronic pen. Done right, this idea has a future. I’ve lost count of the number of jotted notes I’ve taken and then wished it would magically transport itself into a report|diagram|spreadsheet|webpage, because I was sure to mislay the darn thing and then that’d be a good idea I’d lose, or rather remember again (memory not too bad yet, touch wood). Of course, merely writing it down improves the chances of remembering, but it’d be pretty good if I could email my jotted notes to myself. (And not in the ridiculous way the Palm makes you do it.)