I found this interesting talk about how hard is to make even the most simple design board, and what difficulties you can find working with other companies to do it.
https://media.ccc.de/v/froscon2016-1909-hardware_is_hard
Nothing new if you have followed OpenPandora/Pyra development for a few years, but it show it happens everywhere.
https://media.ccc.de/v/froscon2016-1909-hardware_is_hard
Nothing new if you have followed OpenPandora/Pyra development for a few years, but it show it happens everywhere.