Adding a simple clickmap/heatmap to plone 4
Adding jquery.fullcalendar to plone 4
A helper/wrapper script for i18ndude to easier working with translation files in a common plone environment.
Create and send mail templates in plone.
jquery.mobile based themes for plone.
Switching mobile themes based on urls in plone.
Adding jquery.ui's themeroller to plone 4 for easy theme customization.