That quote is from David Woo, FX and Rates Strategist at Bank of America/Merill Lynch.
Woo is one of the most genuinely brilliant minds on Wall Street, and that statement is huge.
Here's why: Lots of folks have made positive noises about Bitcoin. Ben Bernanke, for example, said it "may hold long-term promise" but mostly spoke very generally about being open-minded toward digital currencies. He never said anything specific.