Having the ability to make Skype
video conferences mentally with no computer necessary. However this does require an Skype username.
Hiker 1: I can't wait to video conference with my girlfriend so she can see these beautiful mountains
Hiker 2: How can you possibly do that. We have no phones, computers, or internet service
Hiker 1: Didn't you know that I'm a skypic? I can just do it from my mind.