When it comes down to it, all phones are interactive. However, the Pantech PH-S6000 is apparently more interactive than most. It uses 1mm, an SK Telecom system that allows users to talk to animated characters in order to request media and services. There’s also a Bluetooth, dual flash camera (?), a camcorder,GPS, and GIGA functionality for faster graphics rendering.
It also has some sort of mobile post-it technology that allows you to leave animated messages to yourself. You could, for example, pretend that the animated girl on your screen is really your girlfriend and she can ask you to bring stuff for her. Then, when you get home and find the apartment empty, you can play MMORPGs and eat squid chips.