Some of the most popular and newer bands at the moment have not only given credit to U2 for the doors they opened in the past but have also given credit to their work (albums/songs/tours/videos) to U2 and their ideas.
So it's not really all that far-fetched to say that some of the music and bands out there today are copying U2. Whether you appreciate that bands music or not is entirely your choice.
But it's been a spoken fact among bands such as Green Day, The Killers, Razor Light and Coldplay that U2 is a huge influence on the road and in the studio.