Silicone Case for HP 50G

[grsbanks]

(04-12-2019 05:16 AM)zx_spectrum Wrote:  (so what about those dm11 dm12 dm15 dm16 dm41??!!)

There is no statement of copyright in the ROM for the original HP machines on which those are based, so they were fair game. HP know about the DM1x/41 machines and have made no attempt to prevent their production.

The 48GX ROM is free for non-commercial use, so SM can't include it with a commercial product. One possible technical solution would be to provide a DM48 with an emulator on board but no HP ROM and ask customers to grab the ROM themselves and place it in the calculator. Not all calculator users are sufficiently technically able so doing this is potentially opening up a world of pain for support issues and SM would no longer have the time (remember, it's a two-man band) to improve other existing products and develop more.