That's similar to what Air Canada had on the seat back for the flight I took SYD<->YVR (economy). My Australian laptop plug worked fine with it. So it's defin

That's similar to what Air Canada had on the seat back for the flight I took SYD<->YVR (economy). My Australian laptop plug worked fine with it. So it's definitely doable, and I'd be prepared to bet money that it runs off the same APU that powers the entertainment system.