You can use some static RAM (flash/EEPROM) PCMCIA cards in the A600/A1200.
Only linear addressed SRAM cards work with prepCard. They can be added as system memory or as drive (last one recommended). You may even boot right off them (I use an old 1MB battery backed up SRAM card of my Apple Newton for making Poseidon resident at first boot).
FlashROM cards do *not* work with prepCard, as they need special sequences for writing (technical background: FlashROM needs special write cycles, maybe combined with sectoring).
Michael
