Well the boys where in Berlin earlier in the week. If you follow The Edge on twitter you got a chance to see the image of the ceiling at the Hansa Ballroom. German news sources said the band was in town to film.
Bono was spotted driving a gren Trabant from the cathedal to Hana studios. This could be part of the release package for Achtung Baby, anniversary edition. So far no official news from the band as to what they where doing in town. Some fans said they heard play back music and other fans said they did not sign autographs and moved pretty quickly thru town. You can still get U2 Concerts Tickets today for all shows.