The story
According to The Digital Antiquarian, "The seeds of MicroIllusions were planted during one day’s idle conversation when Steinert complained to David Joiner that, while the Amiga supposedly had speech synthesis built into its operating system, he had never actually heard his machines talk;.. He proved as good as his word within a few hours. Impressed, Steinert asked if he could sell the new program ' talk to me' in his store for a straight 50/50 split. Given his circumstances, Joiner was hardly in a position to quibble. When the program sold well, Steinert decided to get into Amiga software development in earnest with the help of his wunderkind."
From Wikipedia’s article on MicroIllusions, shared under CC BY-SA 4.0.3