Gosh, this seems incredibly pessimistic and negative. If you think "Invisible" was only meant to be a "test the market" aspect, fine. But what better way to do so than have a charity song that raised millions?
I don't get all this "reinvention" talk anway. U2 will always sound like U2. They may sound more punk or rock or ambient or techno or folk or pop, but it's always U2. What do you really want them to sound like?
It's funny how people ignore some really creative songs like Fast Cars and Moment of Surrender in this discussion. If you don't want slower songs like Ordinary Love (which was appropriate for the film), why ignore Breathe?
I really have no idea what people here want from U2. But it has to be "fresh". It's pretty tough to be 100% innovative when U2 have experimented with so many sounds already. Anything they create is bound to sound like something else they have done in the past. At this point, solid song writing is brilliant. And I hear that on both Ordinary Love and Invisible. Both are that softer pop sound, but both are far more brilliant than weaker tracks like Crazy Tonight.