Yup. NVFS memory doesn't lose data when it runs out. NVBackup only works for devices with NVFS.
Forgot that one was still around. Here is the actual link, though hunting through that thread is quite worthwhile (and a lovely trip down memory lane):
BackupBuddy Lite is free, and in the software reviews thread in my signature. You just have to remember to run it, or use the scheduling app I mention with it.
Is there a (relatively cheap) app available for Garnet PDAs that will back the device up on the card? That is the one thing that I really miss from my TRG Pro that I would love to have on the Aceeca.