Just launched in time for the Aug 7-9th festival, the handy iPhone application lets you browse the lineup by day and artist, read bio info on each group, and add any performance to a customized schedule -- making your concertgoing experience way more efficient than anything involving Care Bears On Fire should be.
The Lolla app also provides a map of the Grant Park festival grounds, plus a "Now Playing" tab that lets you see which bands are performing within the next two hours.
Other useful Lollo-related iPhone apps include:
Buster:The Chicago Bus Tracker: Quick and easy way to find out how long the wait for a Chicago bus will take. $0.99