JJP announced WoZ January 1st 2011. In my book that's not 2 and a half year ago, just over 1 and a half.

Go back to the first Spooky podcast where Jack first talks about WoZ
in the podcast he mentions that work on Woz had started 12 months prior

April 18 is the first time the public sees anything from Woz, Dorithys house
Jack would have to have been fairly along in the design prosess to even be working on 'Toys'