The FAA can bless all they like! but remember that anything attached to your aircraft should be approved first by the manufacturer or by way of a major or minor modification and crertified as such. There is a fundemental problem with 'playing' (if that's the right word) with an aircraft or its systems in flight, especially if the system by nature is technically incompatable ie. 50HZ Vs 400HZ. Most of the outlets are powered by a service bus, which might at first seem incidental, but can also power important stuff like cargo smoke detectors and Navigation lights.
As for powereing a mobile phone, why can't you wait and do that at home or in the hotel? as for a laptop, well, shouldn't you be flying the aircraft? If the company wants to introduce such electrical stuff then hopefully they will have applied for the correct modification, that will have been assesed and approved by the manufacturer and appropriate airworthiness board. otherwise the use of such items may actually contravene the aircraft type certificate and thus make the C of A invalid. Your decision Captain!