Want to get your hands on an early access demo of Duke Nukem Forever? Then go buy the Game of The Year Edition of Borderlands. If you buy the GOTY version 2K Games and Gearbox will grant you access to the ‘Duke Nukem Forever First Access Club’. Members will get a hold of  “exclusive items, including early access to the [DNF] playable demo before it is publicly released­.”

EDIT:

Borderlands GOTY is set for a release on October 15th