There was some controversy when U2 announced it was ending its long-standing partnership with Apple and the iPhone to do a cross-promotion with Research in Motion's BlackBerry handsets. At the time, U2 members allegedly said they made the switch because RIM would let them be involved in design — whatever that means.

Now the product of the agreement is clear: an app exclusive to BlackBerry phones called the U2 Mobile Album. With it, you can listen to the new album, read news from U2.com, watch music videos, check dates for the now-in-session U2 360 tour, and locate other people using the app at concerts. Much of this has been done before in band apps for the iPhone or other devices, of course, but it's the first time such features have been available to U2 fans.

One of the features touted is a location-aware map of each concert stadium the band plays in, with dots showing you where you and other BlackBerry users are sitting or standing.

There hasn't been any word yet on when this app will go public, how you'll be able to get it, or how much it will cost.