Update.

diff --git a/README b/README
index 7536cea..84c6ec2 100644 (file)
--- a/README
+++ b/README
@@ -1,12 +1,8 @@
 * What's this?
 
-EasyPG is a fully functional GnuPG interface for Emacs.  It has two
-aspects
-
-- The EasyPG Assistant
-  A GUI frontend of GnuPG
-- The EasyPG Library
-  A library to interact with GnuPG
+EasyPG is a GnuPG interface for Emacs.  It has two aspects: tools to
+use GnuPG from Emacs (The EasyPG Assistant), and a fully functional
+library to interact with GnuPG (The EasyPG Library.)
 
 * Requirements
 
@@ -53,20 +49,27 @@ mml2015-cache-passphrase
 mml2015-passphrase-cache-expiry
 mml2015-verbose
 
-** SEMI based MUA
-
-SEMI is the MIME library used by Wanderlust, cmail, T-gnus, etc.
-
-There is an EasyPG capable SEMI library called EMIKO-EasyPG.  It can
-be downloaded from the same site of the EasyPG distribution point.
+NOTE: You need not to install pgg-epg.el in this case.
 
 ** PGG based MUA
 
 PGG is somewhat outdated PGP library used by old Gnus, MH-E, etc.
 
 There is a PGG backend using EasyPG called pgg-epg.el.  However,
-pgg-epg.el provides no more additional features than pgg-gpg.el,
-because PGG's API is restricted so that it supports old PGP 2.x/5.x.
+EasyPG API is a superset of PGG's, so pgg-epg.el just emulate the old
+behavior of pgg.el.  Major features which PGG lacks are
+
+- Key selection interface
+- Web of trust support
+- A mechanism to investigate the verify result
+- S/MIME support using gpgsm
+
+** SEMI based MUA
+
+SEMI is the MIME library used by Wanderlust, cmail, T-gnus, etc.
+
+There is an EasyPG capable SEMI library called EMIKO-EasyPG.  It can
+be downloaded from the same site of the EasyPG distribution point.
 
 * Security