diff --git a/ChangeLog b/ChangeLog
index b596344a6..ab7cd08a8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2010-08-11  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* SoObjects/SOGo/WORequest+SOGo.m (-isAddressBookApp): new
+	(hackish) test method to determine whether the client is Apple's
+	AddressBook.app.
+
 	* UI/Common/UIxPageFrame.m (_dictionaryWithKeys:fromSource:):
 	set an NSNull as value for keys which return no results, in order
 	to avoid an NSInvalidArgumentException.
diff --git a/SoObjects/SOGo/WORequest+SOGo.h b/SoObjects/SOGo/WORequest+SOGo.h
index 415c3dbb4..f5b775e90 100644
--- a/SoObjects/SOGo/WORequest+SOGo.h
+++ b/SoObjects/SOGo/WORequest+SOGo.h
@@ -34,6 +34,7 @@
 - (BOOL) isIPhone;
 - (BOOL) isICal;
 - (BOOL) isICal4;
+- (BOOL) isAddressBookApp;
 
 @end
 
diff --git a/SoObjects/SOGo/WORequest+SOGo.m b/SoObjects/SOGo/WORequest+SOGo.m
index c1c0d042a..744a4802b 100644
--- a/SoObjects/SOGo/WORequest+SOGo.m
+++ b/SoObjects/SOGo/WORequest+SOGo.m
@@ -137,4 +137,14 @@
   return [self isAppleDAVWithSubstring: @"iCal/4."];
 }
 
+- (BOOL) isAddressBookApp
+{
+  WEClientCapabilities *cc;
+
+  cc = [self clientCapabilities];
+
+  return ([[cc userAgent] rangeOfString: @"CFNetwork"].location != NSNotFound
+          && [[cc userAgent] rangeOfString: @"Darwin"].location != NSNotFound);
+}
+
 @end