Minor

pep-keysync/draft-hoeneisen-pep-keysync.mkd

@@ -114,8 +114,9 @@ not leaked or exposed to theft -- end-device security being out-of-scope.
 
 * Device Group: All devices that are grouped to share data like
   cryptographic keys, trust information, calendar, configuration and other
-  data. The data is synchronized through a common data channel for a given
-   identity, e.g., a mailbox in email.
+  data. The data is synchronized through a common channel for a given
+  identity, e.g., an identity can be an email address and the common channel 
+  a mailbox in email.
 * Group Key: A key pair primarily used by a Device Group for a certain 
   identity. Each uncorrelated network address, e.g. an email address, has its 
   own Group Key. That is, a Device Group can have several Group Keys. One for