Yesterday I joyned the #AvantgardeGamingDay in Frankfurt.
I had my #Atari7800+ hooked up and presented some new games like #ARTI
On a very quick test run we could see the a flaschcard for #Atari2600/7800 based on a #Pico10400 could start #Ballblazer on the 7800+
You have to select the game on a real 7800 and then plug the cartridge into a 2600+/7800+ as the menu is not accessible on the new machines.
This works due to a rechargeable battery on it. Not very much convenient but it should not replace my hundreds of cartridges anyway. I just want to play(!) sometimes a single game which is not available on cart
I guess not all roms will work and I will report more about my testing as I love the idea behind it