One's got to singe his own ignorant imagination and pipe dreams by constant reality checks.

Just now I pried a fact out of the long history of computing. Apple had been developing and selling the Newton PDA by its 1998 end, which people say is the very first handheld PDA.

See http://encyclopedia2.thefreedictionary.com/PDA.

I wonder how much of that legacy has been used to prop up their roll-out of iPhone.