If you're developing Phonegap applications with jQuery Mobile for devices running iOS7 then you're probably going to experience some issues with the placement of items within the application header. As Apple have changed how the header behaves in iOS7 you'll need to make some adjustments in your code to accommodate this.
jQuery Mobile articles
We've recently started developing with jQuery Mobile (jQM) and ran into an issue with the speed of page transitions taking place in our Adobe AIR application. Unlike previous complaints registered online from user's concerned about jQM running slowly we found the transitions were running too fast and needed to find a way to slow them down.