Obvious solution, built in USB hub into her arm so she can charge several peoples cellphones at once!
I wonder what kind of charge time that has and if she can take it off while it's charging up?
Wow, that's sad, scary, and awesome all at once.
edit: fixed a word.
I just noticed that I've reached the point where I see such prosthetics as a real part of the person wearing them. That was sudden. And surprisingly soon.
Also, I hope for her that we'll have some kind of kinetic energy converter, or however you call them, as a power source for bionic limbs. That'd save a whole lot of trouble I reckon.
Realistically though, shouldn't she have had a portable charger for that thing? 2/10 would not have survived Neuromancer.
In a Gibson novel, the arm would have a monofilament whip and a tranq dart gun built in for dealing with outlet hogging a-holes.