Updated readme

README

@@ -3,10 +3,24 @@ Custom iOS geocoding and reverse geocoding services that call Google's JSON geoc
 
 
 --WHY---------
-- To avoid a long-standing, random failure condition in MKReverseGeocoder, possibly due to usage of old APIs, or hitting a usage limit imposed by Google.
+- To avoid a long-standing, random failure condition in MKReverseGeocoder, possibly due to usage of old APIs, or hitting a usage limit imposed by Google. A google search will bring up many documented cases of the issue, such as�
+
+"MKErrorDomain error 4 iPhone" - Stack Overflow
+http://stackoverflow.com/questions/3926164/mkerrordomain-error-4-iphone
+
+"MKReverseGeoCoder error 4" - iPhone Dev SDK Forum
+http://www.iphonedevsdk.com/forum/iphone-sdk-development/63047-mkreversegeocoder-error-4-a.html
+
 
 - To provide forward geocoding (find coordinate from location), which is not provided in iOS' standard Location Services.
 
 
 --LICENSE-----
-Everything is released under the BSD License, all code is free to use in any projects (check out the files for more details)
+Everything is released under the BSD License, all code is free to use in any projects (check out the files for more details)
+
+
+
+--OTHER NOTES-
+- Any comments regarding the services, suggestions, notes on bugs or comments on the MKReverseGeocoder failure issue are welcome. 
+
+- The services rely on the open source Objective-C JSON framework (http://code.google.com/p/json-framework/) it's only been tested with the version included with the project.