A couple points:
* Laislin, I read a recent interview in which Edge said they may release a box set sometime in the future, but there are currently no plans for such a release. He also said that despite the fact that there are some really good songs that no one has ever heard, there are also some really bad ones...
* As for a new song or two being put on the '80-90 Best Of, I would be just as happy if they reworked a song like 'Where Did It All Go Wrong', which, in particular, I think has HUGE potential if U2 decide to take another stab at it. Yeah, I'd love to hear that song re-worked. Heaven. I do, however, believe that this time around, it will not be a re-worked song, but will be either one or two new songs (going by what P. McGuinness said about U2 working on new material for a possible release later this year -- as it would coincide with the rumoured Best Of timeline, and is consistent with Edge saying they would like to spend a year and a half recording the new album, and therefore negating the P. McGuinness statement in any possible reference to a new album, for example).
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The Tempest