@monami:
Amigahistory.co.uk has a rather nice write-up of the whole history of Commodore. In short the boss of C=, Jack Tramiel, was booted out of C= just before C= bought Amiga. Jack Tramiel became head honcho of Atari and tried to acquire Amiga. He became somewhat pissed off when C= managed to snatch up Amiga and he created an 'Amiga killer' from off the shelf parts which became the Atari ST. So you see why there was somewhat animosity between the two camps =).
