Summary
The purpose of this chapter was to show you how you can set up a useful client-side application that uses XMPP to share messages across clients and you can challenge someone to a game of Pong!
In the following chapter, we will build on this example by creating a server-side component to manage the application state, and we will create our own XMPP-FTW extension that will allow us to craft our own messages rather than sending data through the text of a chat message.