i like the idea, but it will depend on price. those chips are finally powerful enough for day to day use, hope apple will do same - the only way i would buy anything else from them apart from my phone.
dont underestimate laziness, yes i have power outlet 1m from my bed, still its a pita to get out from my warm bed and plug whatever device in. also dont forget that cables are always 10cm shorter than needed.
when i need power i have my pc.