That actually isn't a problem, I just didn't know if it was a typo or what. I'm not going to demand that people use "American English" or anything like that (like "correcting" someone when they say something like "even though the Vectrex didn't have colour, blah blah", since "colour" is acceptable in several non-U. S. countries, as I just leave it).
In this case, it can just read something like "Vectrex KI (also known as A. I.)" so it will be more universally understood.