Hello! is an example demonstration app for services, plugins, touch-to-share information exchange and homebrew multi-platform packaging of both Mojo and Enyo in the same homebrew application.
Run Hello! concurrently on each of a TouchPad and a Pre 3, and then touch to share to see the demonstration.
Packages are in the Preware testing feeds, and source code is at http://git.webos-internals.org/applications/hello/