The Fossil WristPDA has 8 megabytes of RAM - this was extremely much a few years ago(in the days of the Palm m5xx series, for example). However, the WristPDA does not support VFS - so, Palm OS applications that demand an SD or MMC card can not work on the WristPDA. Installing a RAM disk application doesnt work either, as the WristPDA lacks the Palm OS expansion manager - but Alexander Gratz and I managed to fix that up!

The first step involves installing the VFS manager from a Palm OS 4 PDA. Get the following files(for an english WristPDA), and install them:

  • Card Info.prc(optional)
  • Card Info_enUS.prc(optional)
  • ExpansionMgr.prc
  • ExpansionMgr_enUS.prc
  • FATFS.prc

Afterwards, you need a RAM Disk aplication. RAM Disk applications snatch up a bit of RAM, and then make the Palm OS believe this area of RAM is a memory stick or SD card. We decided to use RAM Disk from Handwatch, and it worked really well - the picture below shows Card Info running on the WristPDA:

The launcher supports launching programs from card, however, it does not support moving files over, etc. Use a freeware like FileZ to accomplish that, and all should be done!