Glenn Vanderburg posted a summary of an interesting calendar app called FishCal. It's a "fish-eye view" of your calendar, so you can go up to 50,000 feet or zoom into this afternoon.
It's an interesting interface concept, but not practical at the moment due to implementation issues (it's too slow at the moment, but code can be optimized and PDAs can get faster). Normally, I'm a big fan of PalmOS devices. I for one have no need to try and get a little palmtop to be a replacement for Word, Excel or PowerPoint -- a palmtop should be an accessory, not a highpowered computing device capable of finding extraterrestrial life.
But this app is actually quite interesting, and it's written for PocketPC (fka WinCE) devices. It also demonstrates how interesting apps for a little device can get once you start treating a palmtop display like a desktop display (with color, many sizes of various proportionial fonts, etc). I don't think that this kind of work can be done on PalmOS. If more apps like this start making interesting and intuitive uses of screen real-estate, then there's a very strong argument to look into PocketPC or QTopia type palmtops...
