Well this is sad news for Pixies fans out there. The band announced last week on their facebook page that "We are sad to say that (bassist) Kim Deal has decided to leave the Pixies. We are very proud to have worked with her on and off over the last 25 years. Despite her decision to move on, we will always consider her a member of the Pixies and her place will always be here for her. We wish her all the best".
Here is a fantastic interview with her.