There's a world of difference between designing a chip for a range of customers (i.e. pre-Amazon acquisition) and designing a chip for one customer. So provide

There's a world of difference between designing a chip for a range of customers (i.e. pre-Amazon acquisition) and designing a chip for one customer. So provided Amazon does a reasonably good job of managing the acquisition, this really should be looked at as first generation (despite however many iterations occurred before the acquisition) since their design constraints (workload/environmental/power/thermal) have likely been altered significantly.