Hello.
Although i have not clearly understood where this new ROM come from and who is going to make it available, i wonder why bother with A500/A2000 before A1200/A4000? From what i have read here, booting from USB would be great.
EDIT: ok! i have just understood that ROM supports from A500 Plus to A4000 are already suitable for 42 pins EPROMS. I see the point now :-)