It's such a great little protocol, and besides being "small enough" for hobby projects, it also scales enough to be used for something like Facebook Messenger [

It's such a great little protocol, and besides being "small enough" for hobby projects, it also scales enough to be used for something like Facebook Messenger [1] [1]: https://engineering.fb.com/2011/08/12/android/building-facebook-messenger/ https://engineering.fb.com/2011/08/12/android/building-faceb...