It's interesting to see the kinds of terms they each use, and how often. Bill likes to say "great" and Steve said "phone" a LOT.
The Seattle PI posted another neat use of this in Microsoft's evolution, in keywords.
"What happens when you boil down one company's history into a series of keywords? We collected dozens of key Microsoft-related speeches, interviews, internal e-mails and other documents from the past three decades, and put them through a program that generated a timeline of tag clouds showing the 64 most commonly used words in each."
It's fun to explore that timeline. Check it out!