Not surprising considering the guy always was an engineer who liked to tinker with existing products to improve them, rather than a marketeer like Jobs :
http://www.itnews.com.au/News/300704,wozniak-calls-for-open-apple.aspx
http://www.itnews.com.au/News/300704,wozniak-calls-for-open-apple.aspx
The company's notoriously closed architecture has been the subject of debate for decades, with Wozniak himself pushing for the ability to configure and expand the products' software and hardware out of the box while an employee during the 1980s.