So I'm reading through SR4A after not bothering with SR4 a few years back due to my players preferring SR3, and discovering some fluff and crunch changes that make me wonder. The one that stands out best to me is the bits about wireless functionality being standard in all cyberimplants. Reading through the base book, all of the cyberware presented is systems that have been in use in-game since what, the 2040's? Only now having wireless disabled on your gear penalizes anyone doing maintenance on it.
Did the street docs lose their touch over the last few years, or is this just one of those things that has to be shrugged off to maintain suspension of disbelief like how one can maintain anonymity in a world where information networks and drones with cameras are literally everywhere?