Why do fans on message boards feels that U2 owe them an explanation on the time frame of the release of an album?It's pretty obvious that U2 think that some songs needs to be more polish.When they'll be happy of what they got,they'll set a date,period.
And like a few have said,there is no delay,since there's haven't been a release date announce,only a vague time frame earlier this year,of maybe fall 2013.
Most of all, there is no delay because there has been no official word autumn this year release isn't happening.