The 787 supplies a back up IAS derived from AOA and inertial system should you lose all pitot's. The GPS takes over altitude. A very nice feature.
p.s the GPS/FMC ground speed indicator is always a vital tool for handling unreliable airspeed especially if you still have wind data.
The vital difference with Boeing is that there are no control FBW inputs to overspeed/underspeed. (Only trim inhibit) This means any failure is passive and Boeing want the pilot to have control over the aircraft not the other way around.
I am losing count of the number of airbus incidents of altitude climb/bust due to transitory overspeeds.
Throttles that don't move/ sidesticks cancelling each other out with inputs not visible to the other pilot/ FBW system that commands pitch manoeuvres without the autopilot..........The airbus design philosophy counters not helps piloting ability and awareness especially when its needed most with out of the ordinary occurrences.