It's really... weird. It definitely sounds like an early punk band with Bono on vocals. So they're definitely going back to their roots. It's kind of Clash/Pistols/Ramones. Definitely worth checking out. Their new album sounds like it's going to be really different that their 2000 release and more like Boy. Which is definitely the way to go.
"Those ****ing amateurs... You left your dog, you idiots!"