Interoperability? An RTOS on single purpose devices would ease the ability to create/run 3rd party apps for these devices, also allowing you to create apps for

Interoperability? An RTOS on single purpose devices would ease the ability to create/run 3rd party apps for these devices, also allowing you to create apps for multiple single purpose devices. GPS on cellphones that communicate seamlessly with your car, sending/receiving network data from a device ("Your toast is ready on your cell phone :)"), programming your DVR from your cell phone, etc.