diff --git a/README.creole b/README.creole
index 5ed4d2af7409f1a018ac62ece385c011fe3b1edd..ff24bcfbd8235750839e349a548d29be227dea7b 100644
--- a/README.creole
+++ b/README.creole
@@ -1 +1,3 @@
 = sgx-catapult =
+
+An XMPP to SMS gateway for Catapult (also known as Bandwidth AP), using XEP-0100.  The "SGX" stands for "Soprani.ca Gateway to XMPP", as this is associated with the Soprani.ca project.