Official Site: http://www.iphone-dev.org
Developer: iPhone Dev Team
Downloads: 140

Description:

The iPhone Dev Team have released a new version of Pwnage Tool, their program that allows creating custom made IPSW iPhone / iTouch firmware files.

So far only a Mac version of the program was released, sorry Windows users.

Pwnage Tool 3.1.3 Download

PwnageTool_3.1.3.dmg - Mac