I'm going to be slightly unorthodox and say that as long as they're no embarking on the same type of venture, having the same name is more-or-less okay. Nobody

I'm going to be slightly unorthodox and say that as long as they're no embarking on the same type of venture, having the same name is more-or-less okay. Nobody with domain-specific knowledge is going to be confused by this, and it's barely even worth picking a fight over. If he wants to call it Limbo, I say let him.