Pam is trying to use the iPod to text. She can't use anything other than Skype and Leo says that Skype has texting built in. Leo also says that there are plenty of other apps out there including WhatsApp, Google Voice, and TalkaTone. She can also use Apple's Messages app, which is able to text (or iMessage) people that have iOS devices. She just won't be able to text over SMS, because that requires a cell network.