Via the official Clazziquai Twitter account news of a best of album was announced today. This compilation is exclusively available via Okestra, an application for iPhone, iPad and iPod: The Best Clazziquai Okestra. As part of the package come lyrics and the possibility to record yourself singing as well as feeds from YouTube and Twitter. Many other artists have already released regular albums through Okestra.
It seems The Best Clazziquai has been out since Mars 28, but it is now available for free during a two week promotion time that started April 18 and closes May 1. Tracklist and other details here.