This document discusses how to build cross-platform enterprise Android applications using HTML5 and Ruby. It notes that smartphone usage in enterprises is growing as workers use their own devices. While Android is the fastest growing mobile OS, most enterprises still rely on older platforms like Windows Mobile. The document proposes using RhoMobile, which allows developing native mobile apps using Ruby that can run across Android, iOS, Windows and other platforms. It leverages HTML5, MVC patterns and data synchronization to enable enterprise mobility. A demo damage report app is also shown.