Not exactly. [Man...she must really be from a different world. He's busy activating the CereVice, even enabling its hover option so he has both hands to demonstrate.] See this? This is called your contact list. We've got everybody in the colony listed here, so you can select a name--[He starts typing the letters (T-A-D-A...) before Tadashi Hamada appears as a suggestion.]--and it'll put you in touch with the person you're trying to call. It's an easy way to see if people you know are around, too. You can also send text messages which are like instant virtual messages to people, and you can record video on them.

The CereVices do a ton of other things based on what applications you download for it, but that's the main function.