Yes, they are - but different steel:
all of the the 07 road steel models are Reynolds 631 (Eros, Vigorelli, Imola, etc).
the Volpe is 520 CrMo I think, if my memory doesn't play tricks on me... That, added to campy mirage or veloce compaed to shimano tiagra is the main reason I was suggesting Eros over Volpe
Of course it also depends on what kind of geometry he likes better...
In any case, all Bianchi are wonderful