I highly doubt that google changing its home page is an attempt to fool people into thinking they're not evil.
I'm not sure why the current google page is devoid of any color but its a bit paranoid to think its some plot by the corporate stuffed shirts.
by the way, given google's track record and cash flow, I'd say those programmers and businessmen seem to be doing a great job at running the company
Edit:
Looks like its part of the live results, and its pretty cool how the color comes back. Nice feature