If there is a way to get a 4s booting booting open sourced kicad based A20 reference design for everyone to share off the ground, probably my employer would be interested.
Saw this one earlier where a booted Linaro image is reloaded in 17 seconds to being usable:
http://www.cnx-software.com/2015/04/28/zte-zx296702-dual-core-cortex-a9-soc-...
Something along those lines - but 4 seconds to being usable.
http://ec.europa.eu/programmes/horizon2020/en/what-horizon-2020
is there anyone who would like to participate in an EU funding consortium?
l.