The Kickflash memory is some kind of a reflashable ROM, so it will not be available as RAM. The 1GB expansion will surely act similar, though I think it will be mounted as a drive. I guess the piont of this expansion is that you can build a complete diskless and therefore silent an low energy machine. RAM on a ZII Card would be dead slow anyway, about 1/20th of the speed of the RAM on an accelerator at best. Even ZIII- RAM stinks.