Announced in last month's issue of Newtype Magazine, Kobato will be animated by Madhouse Studios and be aired in Fall (Autumn) 2009 on NHK. CLAMP's own Nanase Ohkawa will be directly involved in the project by providing the character designs.
Kobato is roughly about a young girl named Kobato Hanato who needs to fill a strange bottle with the feelings of pain and suffering from people's hearts by making them happy. Along the way, she is accompanied by an ill tempered stuffed toy dog named Ioryogi.
The first time I remember hearing about this title was back in 2006 at Anime Expo during CLAMP's visit. One of them had a plushie of Ioryogi and mentioned it was their newest work in Japan. Some Americans probably already had a taste of this series as the manga had a brief appearance in Newtype USA running from June 2007 to May 2008 for a total of nine installments. I probably definitely will be checking the anime out, and fans of CLAMP will probably enjoy this.
Scans of the Kobato anime feature in Newtype Magazine are inside.
Newtype February 2009
Newtype December 2008
(Note: both scans were found online)