Right Back Up for Palm OS allows a user to perform a complete backup of their Palm m500 or Palm m505 device to the SD Memory card. You can schedule backups to happen automatically, and keep multiple devices backed up to the same card.
Version 1.71 features support for the Tungsten T3 and E, as well as full screen support.
This program has saved my rear end a couple of times already. Good features, easy to set up and use. As cheap as 32-64 MB MMC cards are, this is a no-brainer. This is especially true for folks who don't keep their palm often hot-synced because you are away from your computer for long periods or don't really use your Palm Desktop software at all. The only thing it lost on a necessary backup was my photos (and those are on my computer at home). I have downloaded version 1.78 recently which may have addresed this - don't know.