I'm sure there will be more, but as of right now, they're offering a special collection only to those who subscribe to their website, U2.com.
Titled 3-D Dance Mixes, this limited-edition set includes a 12-inch vinyl record featuring three remixes, as well as an exclusive poster and a pair of black-and-white prints from the period by their longtime photographer, Anton Corbijn. The three songs that have been remixed are "When Love Comes to Town" featuring B.B. King, "God Part 2" and "Desire."
The "Live From the Kingdom Mix" of "When Love Comes to Town" includes a "sermon" by Little Richard. "The Hard Metal Dance Club Mix" of "God Part 2" samples John Lennon’s voice and includes the recorded words of Martin Luther King Junior. Both of these extended remixes have never previously been commercially available.
Rattle and Hum, a two-disc set, was released on October 10th, 1988. It contained live performances and studio tracks recorded at Sun Studios in Memphis in November 1987.