I've gone on and on about how there's no excuse for an album to take any longer than six months, a year, whatever... but going by past experience I think we all know that the next U2 album will drop in November next year, as long as all goes well. Whether it's with Dangermouse or not remains to be seen, but this guy has been working with them on and off for, what, the last 2 years? Surely things are coming to some sort of conclusion? But photos of band members on holidays here there and everywhere and no studio gossip has destroyed any chance of a release in the next 12 months. Unless it's all done and ready to go now, but we know that's not the case. So, yeah, it will be 4 years and 8 months between albums, and that is indeed the longest gap between U2 albums.