I would say no. The onus is more on the motorists, it seems to me, to be careful of pedestrians rather than for pedestrians to be careful of motorists -- for the obvious reason that the motorist, safely ensconced in her car has considerably more protection.
It is quite correct for talking on handheld cell phones while driving to be banned, therefore -- because such carelessness is liable to cause them to run down a pedestrian. A careless pedestrian talking on the cell phone is not likely to endanger the motorist in his or her car.
As MikeSyrSutton says, public service announcements (as far as cell phone using pedestrians are concerned) should suffice, I think.