LinkedIN Engineering has published a series of fantastic case studies on their experiences and findings while developing a Hybrid mobile app for iPad :-
http://engineering.linkedin.com/mobile/linkedin-ipad-nativeweb-messaging-bridge-and-websockets
These articles enable a Mobile Web or Hybrid app developer to get an insight into the real world issues and design options for such apps. I am looking for more such case studies from enterprise mobile app development teams. Any pointers would be welcome. (There are case studies from specific Framework vendors, but these naturally focus the strengths of their own proprietory solutions. Also the articles from HTML5Rocks.com or GoogleIO do not generally talk about real world apps)