Originally Posted by DEVIS
Besides, if you're running through an airport to catch your plane, which mind you is a place where you can't use your cell
I can't use my cellphone at an airport? Since when? When I'm connecting I pretty much always have to make a phonecall, and it has happened several times that I land with a phone and a dead battery, in cases like that I need to put the sim in one of my other phones so I can do things like receive text messages, check voicemail or call someone.