If you've been curious as to what Instagram might look like on an e-paper screen and happen to live in Japan, the Kyocera Card Keitai KY-01L might be of interest. It's a companion device that's supposed to be a sidekick to a beefier mobile phone. The KY-01L is really small -- not too much larger than a credit card. It's about 9 centimeters tall, 5 centimeters wide, 5 millimeters thick and weights in at a miniscule 47 grams. It has a standby time of 100 hours and a continuous talk time of 110 minutes.