On Oct 26 2004, at OOPSLA '04 in Vancounver, BC; Alan Kay delivered his Turing Award Lecture entitled ''First Courses In Computing Should Be Childs Play".
A transcript is available at www.cs.uni.edu 
and tinlizzie .
A video recording of the lecture is available at awards.acm.org , though their title is given as The Computer Revolution Hasnt Happened Yet.
See original on c2.com