Gears of War 3 is the conclusion to one of the most memorable series in the current video game generation. It is due to be released on September 20, in about 11 weeks time from now.
The leak will undoubtedly anger Epic because of the time between now and the release, and as the game is reportedly unfinished in parts. However, since it can only be played on JTAG-hacked Xbox 360 consoles, that really cuts down the number of people who will be able to pirate and play it.
The 7.5GB dump is in English and was posted to an Xbox 360 group on Usenet yesterday.
"This is a developer copy (Not completly final) of the game with achievements, Single Player/Coop Campaign and System Link Multiplayer (See you online on XLink Kai ^^).
Some missions at the end of the campaign seam to be missing - so decide for yourself if you want to wait for the retail or not!"
This really won't hurt Microsoft to much because its only usable on jtagged consoles and theres not enough of those to do much damage. Still don't understand why people would want to get a developer leak of the game anyway.