Siri's search result UI is a game changer and has a real chance of disrupting Google imo. Siri's UI is customized for a mobile device, no ads, and it uses search results from Bing, Twitter, Wikipedia, Yelp and Wolfram Alpha. Missing from the list is Google.
All they need to do is somehow figure out how to add web search to Spotlight, use the exact same UI and Google's in big trouble.
University endowments of top universities like Stanford and Harvard are some of the biggest sources of funding for alternative asset management firms (private equity, venture capital, hedge funds, etc.). They have their own portfolio management team managing these funds. Why pay VCs and private equity firms 20%-30% if they can just cut out the middle men and invest the money themselves?