I did check SeatGuru, which shows power ports between the seats (so 2 for the 3 window section seats, and 3 for the 4 center section seats). However, a video I found, and this image:
http://www.flickr.com/photos/moaksey/3564375324/
show the power ports in the left side of the seatback of the non-aisle seats, meaning 2 for the 4 center section seats, and the right side aisle seat (G) in the center section wouldn't really have access to one if anybody's in seat F. So I'm wondering which is right, or if there's another port down between the seats or something.
Thanks!