Cheat but not a cheat

[seanc]

if you want to find all the pigeons go onto the in-game computer and go to www.whattheydonotwantyoutoknow.com its not counted as a cheat and there is some handy stuff on the page

[jimbles]

posted plenty of times mate

[Arizona Snow]

That website address is emailed to you once you complete the last story mission - so in a way u cheating if u use it before then.