Proloquo2Go is an AAC communication app that allows users to communicate through buttons that speak phrases, navigate categories, and type messages. The tutorial covers basics like navigating views, typing and sending messages. It emphasizes customizations like item size and voice settings. It also details how to edit items, add new items, reorder items, and cut, copy and paste within the vocabulary. Maintaining an organized structure through reordering is important for developing memory of an AAC system.