U2 postpone plans to release 2008 album

Rockers U2 have postponed the release of their new album - because they can't stop writing new songs.

The group has been recording tracks for the follow up to 'How To Dismantle An Atomic Bomb' in Morocco and France, where frontman Bono has a vacation home - and the bandmates have amassed "50 to 60" tracks, according to the frontman.