This site claims that they have a Maphack that working on Diablo 3.Diablo III Maphack VERIFIED 5/18/12 Free Version From their site HERE
They also have a program that is called Diablo III Immortal. Which is just a bot that they made. VERIFIED 5/18/12
This is also apparently posted in other forums in this site too.
1: Forum/Diablo 3/Bots and Programs/"simple map reveal" free hack for retail
2:Forum/Diablo 3/Bots and Programs/Diablo 3 Bot and Map Reveal