I trust my Zodiac completely... So far it has only failed me when I was tinkering with some nasty OS functions (like manually editing boot.prc), and as you can imagine I did a backup right before I started. Other then that, I'm doing a backup every night at 3AM, so the worst thing that could happen to me is that I loose one day's data, the chances that internal memory and the SD card fails during one day are much lower then the danger of accidently throwing away a piece of paper. And if all went wrong, or if I lost my Zodiac, there's still the most important data backed up on my PC via PalmDesktop.