GH deal was limited to 3 albums, and the 6 album deal was made irrelevant when U2 left Island records in 2006.
From Billboard news : 12-year deal with Live Nation Artists that includes worldwide touring, merchandising, and the band's U2.com Web site. The deal, however, is not a true 360-degree pact, as there is no publishing component and the band retains its relationship with Universal Music to release music.
I always thought the Live Nation deal was exclusive to touring/website, and that U2 didn't reveal their new record deal.