"'There were 90 markers on her face, and an equivalent amount on her body,' said Cage. 'She delivered the performance in one take.'"

Neal Stephenson, popularizer/coiner of the term "avatar" to refer to online bodies, seems to have nailed this one, too. Can we just start calling them "'sites" now?

  Fred Epidermis had put the stage into Constellation Mode. Miranda was looking at
  a black wall speckled with twenty or thirty thousand individual pricks of white 
  light. Taken together, they formed a sort of three-dimensional constellation of 
  Miranda, moving as she moved. Each point of light marked one of the 'sites that 
  had been poked into her skin by the tat machine during those sixteen hours. Not 
  shown were the filaments that tied them all together into a network— a new 
  bodily system overlaid and interlaced with the nervous, lymph, and vascular 
  systems.

  ... 
 
  Outside, Fred Epidermis was wielding the editing controls, zooming in on her 
  face, which was dense as a galactic core. By comparison, her arms and legs were 
  wispy nebulas and the back of her head nearly invisible, with a grand total of 
  maybe a hundred 'sites placed around her scalp like the vertices of a geodesic 
  dome. The eyes were empty holes, except (she imagined) when she closed her eyes. 
  Just to check it out, she winked into the mediatron. The 'sites on her eyelids 
  were dense as grass blades on a putting green, but accordioned together except 
  when the lid expanded over the eye.

Perhaps the only thing he got "wrong" was that we might not need a stage. A kinect-like system might be enough to monitor and render the shifting systems from your very own living room.