Well...I thought M$ had been working on this title for a while, so it's kinda hard to say it's in response to LBP.
http://www.xbox.com/en-US/community/news/2009/0107-kodu.htm
"Originally designed by Microsoft Research as a learning tool for young kids, Kodu is the newest game to keep minds of all ages sharp by developing logic, problem-solving and creative thinking skills. In fact, in 2006, Microsoft Research teamed up with Girls Inc. and the University of Santa Barbara to create an after-school Kodu program to accurately measure the influence educational games have in the fields of math, science, and comprehension."
"...You can't kill ideas with a sword, and you can't sink belief structures with a broadside. You defeat them by making them change..."
- From By Schism Rent Asunder
