Unofficially, the very last Amiga was the A5000. < 64BIT, AAA chipset 128MB/256MB Fast Ram! I am amazed no one has mentioned this? Even if it didn't get past 3 prototype motherboards!
They were not fiction these boards existed!
http://www.amigahistory.plus.com/a5000mag.html
If this beast had of made manufacture, we would all be having a totally different conversation right now!
Try answering this one: If the A5000 was launched, what Generation would it of been? Next or 4th?