Not interview, but a lot of useful link - http://www.codinghorror.com/blog/archives/001213.html

http://www.drdobbs.com/architecture-and-design/interview-with-alan-kay/240003442?cid=DDJ_nl_upd_2012-07-10_h&elq=c2568ee4975f4e69b244d72a9a8e2487