Good thing I use local Google, "Google Pilipinas" so I definitely didn't see that "Topeka" April Fool's joke.
Haha, missed it too, check out the screenshot : http://www.brightsideofnews.com/Data/2010_4_1/Google-Changes-Name-to-Topeka-for-April-Fools-Day/Topeka675.JPG
Why Topeka? And what is the Topeka? How did Google get that name? Everyone has known Google by its roots and now they're going to change?! I'm not into that!
It was an April Fools prank... It was in response to the city of Topeka in Kansas temporarily changing it's name to Google.