Full body, real time motion tracking
So, with the creative skills of anyone who can make a 3D mesh, would this make seeing paintball on video a bit more interesting? Perhaps if the colour of the paintballs was proper they would be trackable too and allow for interesting video effects.
Things like this and the emergence of betting player based cameras could really make paintball more viewer friendly (if the games themselves weren't so boring sometimes to watch).
It would be kind of neat to skin players so that it looks like a game of CounterStrike.