The document proposes developing an emulator, called the Phoenix Emulator, that allows Phonegap/Cordova apps to be tested in a web browser by simulating mobile hardware features with JavaScript and Flash. It aims to address limitations of existing emulators by being cross-platform, multi-browser compatible, and not requiring installation of plugins or virtual machines. The emulator architecture would involve a web app interfacing with hardware simulators for sensors, cameras, location etc. It would allow offline testing and integration with Cordova cloud builds. Future enhancements could include browsing local apps and plugins for IDEs and browsers.