The eagle eye of David Passell found this info on how to turn an iPod Touch into an iPhone in the New York Times. Columnist David Pogue describes Line2, a $1 iPhone app, and how to make calls indoors and in other corners of the world where AT&T signal doesn't reach, send unlimited texting, and save $30 or $40 a month off your AT&T bill. Since the article's posting on September 30 Mr. Pogue has replied to 245 questions and comments from readers.