[woodchuck64]

> The real breakpoint is that you can't build software for the device on the device anymore

Right, but that's because the open source programmers don't see the point; if it's already a hassle to find and buy the proper hardware to turn your device into a full-blown ergonomic development environment, they figure it's not worth the effort to even think about software.

But if devices already come with easy to use virtual interfaces -- Google Glasses seems to solve the big screen problem, now we just need a virtual keyboard and mouse idea -- it's only a matter of time before veteran hackers say "This is ripe for a community, let's crack this baby open".