Man, you guys are all doom and gloom, I really don't think this is going to be the last one. How ironic would it be for them to have an album called "No Line On The Horizon" right before their last album?
Not that that's the only reason I don't think it's going to be their last one. Think about it...for as much as they're delaying this album, do you really think Bono is the kind of person who is going to be able to come to terms with simply hanging up what they have as a band? The man is a restless soul. When they retire, it will only happen because age forces them to or because they have a tour that sells very poorly, which itself is almost inconceivable too.