This document discusses testing a hybrid book reader application built with Phonegap, HTML5, and CSS3 for the iPad. It recommends testing the app on actual devices rather than simulators due to differences in user interactions, screen sizes, and orientations. The document outlines areas to focus testing on, including app performance, memory usage, compliance with App Store guidelines, handling of user gestures and touch events, and network connectivity in various conditions. Automated testing is suggested but noted to have limited support for hybrid apps. Testing across multiple devices using a mobile grid is proposed for report consolidation.