T-Mobile is offering its customers a FREE hour of in-flight Gogo Wifi and Unlimited Texting on select messaging services on participating domestic flights that offers Gogo. Any handset on the T-Mobile network with a valid phone number is eligible for this offer. Support unlimited messaging services include iMessage, WhatsApp, Google Hangouts, and more. Phones that supports T-Mobile’s Wi-Fi Calling will also be allowed to send SMS, MMS, and access your visual voicemail for the entire flight as well.