Various embodiments of the present invention are dynamic, cross-platform application architectures for devices. According to an exemplary embodiment of the present invention, a platform-specific thin client can be provided on a mobile device. The thin client can be a simple code base customized for the device platform and prepared to configure itself to become a desired application. The thin client can be directed at a trusted source, which can initiate the configuration by delivering data instructing the thin client as to how it should behave under the current conditions and by delivering a framework for the GUI of the application. After the thin client is configured, the thin client can receive content for providing an application to a user. Thus, only a simple code base need be provided on for a device, and that code base can be dynamically configured to perform a desired task under given conditions.