[lxe]

This is true for some boards. For realtime OS-less microcontroller boards like Arduino, the execution model is what I've described: http://johnny-five.io/platform-support/#arduino-uno

For beefier linux boards, like Tessel and Beagle Board, it's what you've described: http://johnny-five.io/platform-support/#beaglebone-black http://johnny-five.io/platform-support/#tessel-2