Not long ago, I walked into a hotel that advertised “high-speed Internet.” Being a veteran road warrior, I went to the front desk to see if the place really offered true high-speed Internet. If not, I’d try the hotel across the street.

(Digression: I once checked into a hotel in Reno, Nevada, that advertised “high-speed Internet.” I found only a standard phone jack. After calling around, I finally found someone who explained that my room was on a “sp...