Re: Doesn't seem very feasible
> The article suggests that somehow there can be transparent migration of workloads from high-draw Intel cores to low-draw ARM cores.
The article may well suggest this but I think that it is unlikely. If the ARM chip can successfully handle some processes such as maintaining a Bluetooth connection to a mouse, or checking for a paired phone coming into range while the machine is in low power mode then there is no reason why it shouldn't continue to do so when the machine is in high-power mode.
The biggest impact on Apple's developers is likely to be some further sub-division of low-level code (like Bluetooth handling) into separate, clearly defined high and low-power routines so that they can be compiled accordingly.