Just a quibble, but Jobs purchased what became Pixar from George Lucas. Saying that he founded it is a bit of a stretch -- he pretty much just bankrolled it until it finally found its niche with "Toy Story". Alan Deutschman's "The Second Coming of Steve Jobs" draws a sharp contrast between Jobs' roles at the two companies:
http://www.amazon.com/The-Second-Coming-Steve-Jobs/dp/076790...