BellSouth/IBM Simon Personal Communicator (1993)

Not to be confused with the Milton Bradley game Simon (#38), the Personal Communicator was the first mobile phone to include a built-in PDA. Jointly marketed by IBM and BellSouth, the $900 Simon was a combination phone, pager, calculator, address book, calendar, fax machine, and wireless e-mail device--all wrapped up in a 20-ounce package that looked and felt like a brick.