Was watching One In A Million where they shot handphones with
some gun (was it .22 LR) to see what was the chances of it
preventing serious injury.
In 3/4 of the cases, the handphone prevented serious injury to the
user (though he still would have gotten injured).
But I IPod saving the soldier's life is pretty moot... if he was
wearing the standard issue Interceptor vest with all the regulation
SAPI inserts (which he would be wearing given he was on a street
patrol), that shot to the chest was certainly defeatable by the
vest.
So his Ipod got fragged for nothing.