I didn't know about either of these books - they'll certainly go on my shopping list.
I'd be most interested in an Amiga book too:
'On the Edge: The Spectacular Rise and Fall of Commodore' was a good read but maybe didn't have enough detail about the Amiga years to satisfy. It concentrated more on the company than the 'Amiga-Scene' and characters behind the various Amiga models.
At a first glance at your previous books I would say your take on things would fill an obvious gap.
I look forward to seeing it.
Welcome to the EAB - I hope you stick around there's a fair bit going on here and it's always good to see new members.