Just a Wikipedia Mash-Up...
I downloaded this app in a hurry as I departed for my trip to Chicago. Once in the city I had time to properly review its interface...only to find out this is basically just a collage of every Wikipedia entry concerning Chicago history/buildings/people.
There are zero graphics, not always a photo for each entry (inconsistent), so it is hard to find information on what youre looking for when youre searching through textual titles.
All in all, not worthwhile!
chicago_visitor about
Chicago Travel Guide and Offline City Map, v3.0.2