Open for Comments May 28, 2013
* [https://docs.google.com/a/mozilla.com/document/d/1o1ABp0Q53yiLWmgeZCQVqjCwz9yuAHoxxXd_22fO2Jo/edit Silent SMS Authentication Requirements v1.0] (spec)
Reference Implementation
* [https://zippypayments.readthedocs.org/en/latest/ Zippy] (reference implementation w/ style guides)
== Other Resources ==