lol the cortex a7 is still the go to low power arm cpu.
how a vast company with all the funding in the world can "bet on iot" but fail so miserably to make any improvement or change at all for so long is something i don't think I'll ever understand.
dont get me started on how impossible to purchase most chips are, how inaccessible/non-existant the docs are, how vendored the frak up the screwball drivers are. what a devolved old world 80's style trashfire of computing arm has been.
open source is finally building up real traction bringing light to this dark mushroom hole, Google is too exhausted & the public opinion wearing thin from unsupportable shortlived high tech devices, but what a slow slow painful march it's been dragging arm & such a broken industry into a respectable place.