From Amalgamated Binaries:
The Poplet Kit includes many sample Poplet modules in source code form provided under an open source license. These are useful both as productivity enhancing applications and as learning aids in creating your own modules. There are modules for text processing, calculations and conversions using the user interface elements of other applications.
Poplet modules support dynamic generation of web clippings (PQAs) to format information on the device and device-local processing for web clipping applications.