There's good news and bad news regarding the subsystems of today's vehicles. The good news is that new engines and transmissions are more trouble-free than in the past. The bad news is that the infotainment systems are still prone to be "buggy."
Reference designs from chip makers serve as a starting point. However, you should establish your own power budget based on how you intend your product is to be used.
Carrying four devices -- PC, smartphone, tablet, and wearable -- only leads to more confusion. The question is which device to retire from the fleet. Charlie Cheng says the smartphone is the most vulnerable.
It's no easy feat tailoring a communications software stack for your IoT design in these days when some layers are still rapidly evolving.
Skype's co-founder once predicted that telephones would eventually become just an app. He foresaw a doomsday scenario for phone companies. We're seeing the inkling of it in China Mobile's latest financial results.