Now that the Saturn128 Reboot design is complete and mostly sold out I am considering designing a new card, this time a ROM card.
My current plan is to make it compatible with the old Apple ROM card that was released to allow the Apple ][ to have Applesoft ROMS soft switchable and for the Apple ][+ to have integer basic. The original cards used 6 ROM's and a handful of TTL chips, there was a toggle switch to select if the card was active or inactive on reset so you could select which basic was the default. My card will go one step further, in addition to the original functionality it will include both version of basic, the original f8 monitor and Autostart ROMs as well as a dead boot diagnostic ROM I wrote that helps identify faulty RAM that would ordinarily prevent a machine from booting (garbage on screen no beep). There will be room to fit another 3 F8 ROM images, so if anyone has any worthwhile candidates to add let me know. The active version of basic and the F8 ROM will be selectable via dip switches on the card. The card will be similar in size to the Saturn128 reboot card and have a comparable chip count, so it wont be particularly expensive to make.
My question is how many of you would be interested in a card that will serve as a very handy diagnostic and still be useful when your Apple isn't broken?