Buyers remorse of HP 48

[Marcovecchio]

I'm wondering if no one ever tried to rewrite the HP 48s/g ROMs using all optimizations included in SpeedUI or MetaKernel. Since the ROM is a separate IC, which is possible to replace on the PCB, that would be a matter of finding a compatible flash ROM, and write the new ROM image to it.

Is that a viable idea? I have no idea on how complex the task would be, software wise, and I also have no idea if there are tools to do this kind of development on a regular PC.

Eduardo