You're reducing the entire market to fools and nerds. There's plenty of room for people in between. You didn't have to be an engineer to add more RAM to your system, you just had to be the geeky kid down the street who wasn't afraid to open up the box. Or you can at least create something open enough that a third party can service the engine, install an aftermarket exhaust upgrade, whatever. We've been making things that could be hacked since the beginning of time and the current crop of mobile device manufacturers is against it.