I've emailed with the guy a few times, just hate to bug him is all. I'd buy a ZVG but only if it supported the sega games.
Sega/gremlin games are those old g-08 color games like zektor, eliminator, startrek, etc. They were interchangeable (in theory) since they used a 'cage' pcb system of separate sound, 2 xy boards, eeprom board, etc. Some recycled the same sounds. They caught fire a lot.
Anyway the original emulator for their vector generator didn't include support for the sega games, which is ironic since their company name is Zektor. I'm hoping since this is a different emulator it supports all games.