hmmm, I've just spent a few minutes thinking about it... and there is nothing that Apple could get from Amiga...
Not for brand recognition, in fact they culled all brands a few years back other than Mac (iBook, PowerBook, PowerMac were all got rid off) and iPod... Apple, or rather Steve Jobs has tended to consolidate brands not spread them out... They *could* purchase the Amiga brand and sell it as a gaming brand, but Steve isn't keen on Games, and they would not sit well with the Mac brand...
Not for OS technology... Apple are consolidating their operating systems to a single OSX... only the Ipod Classic and iPod Nano are not on OSX yet... but I'm not sure how long that will be. OSX has proven to be modern, stable and scalable with a massive developer base... AmigaOS can offer none of these..
Not for Hardware technology... There is no value in any Amiga hardware, even the iPod nano out performs the most powerful classic Amiga, at a fraction of the cost, size and power consumption.
Nope... Apple have better thing to do with their money.
