Careful now... opinions, opinions, opinions.
While "Bomb" has some very dubious songs ("A Man and a Woman" and "One Step Closer"), I would take most of that album's material over most of what's on "Zooropa". And I say this as a "Zooropa" fan. But songs like "Babyface" and "Some Days..." really are horrid. The lack of a many dominant guitar driven songs is interesting, but not for an entire album. While there are some gems, I find more on "Bomb".
Regardless, the idea of a "quick" album release in mid-tour is a great idea. That could put the album out in 2010. And if this mid-tour album is similar in quality to "Zooropa", I'll be thrilled.
I think, though, part of this "quick release" will be heavily dependent on how well NLOTH is received. If the album is a hit with several hit songs, then I think the likelihood of a quicker release might be higher. But if NLOTH has so-so sales or modest hit songs, then maybe U2 might want to stop and re-evaluate before rushing out another album. That said, both ATYCLB and HTDAAB were hit albums with hit songs, yet U2 still took their time. So???