'Get Smart' Phones You Can Actually Get

Once a joke, belt phones, pen phones, and wristwatch phones are now a reality.

Carolyn Duffy Marsan, Network World

More than credit cards if you own one of these babies. Wallet phones have been available in Japan for four years. These cell phones have built-in debit cards that allow users to pay for items with cash or conduct other transactions such as buying movie tickets and train passes. The latest versions also feature cameras, radios and MP3 players. As convenient as they are, wallet phones aren't expected to reach a critical mass until 2012.