German-based digital signage commentator describes SMIL in its recent article SMIL – A Standard of the Future? (via Google Translate):

SMIL allows integration and management of multimedia elements like audio, video, text and graphics in web pages. SMIL works with Java applets, servlets or CGI scripts to link and access databases, for example.

In Germany, the 42media 2010 years has presented a version of a SMIL player. Taking a step further, the U.K.-based Signagelive software provider, in cooperation with the Taiwanese hardware manufacturer IAdea presented an advanced SMIL player.

Visit the article in original German language and translated into English via Google.