Creativa is a community style themelet for Joomla, giving you a head start on your next community site. This themelet will integrate smoothly with some of the leading Joomla! extension for blogging, commenting, discussion forums, social engines and ecommerce.

The extensions listed on the integrations page are the ones chosen for the first round: http://prothemer.com/s/creativa/extension-integrations/ For current status, see: http://prothemer.com/s/creativa/current-status/