http://www.youtube.com/watch?v=UAHDX8VI20IUsing my exploit to level skip from Hell either corpse skip or exploit to this place before Diablo in Inferno.
Note:
Corpse skipping is simply the act of teleporting to a dead body as a living character moving ahead, dying, the other player releases and teleports on your dead body.
That is corpse skipping.
For the act skipping exploit defeat hell.
From hell pick a place you want to be in (ie. Act 3 - Heart of Sin)
Select the quest and enter the game.
Now exit the game.
Select Public Games.
Push Join Game.
Leave the public game (you'll be where you normally were in hell but in Inferno)
Now your saved to Act 3 Inferno without beating any of inferno from hell.
Thats how it works. Does not work on sub quests, only title quests in acts. To get to where you need to get in the act if it is a sub-quest way point you are farming you will need to use corpse skipping.