Home prices in 20 US metropolitan areas fell in April by the most on record, signaling the housing recession is far from over, a private survey showed today. Las Vegas and Miami again earned the distinction of being the weakest markets over the past 12 months, declining more than 26 percent in the last year. Separately from S&P/Case-Shiller Home Price index, consumer confidence dropped like a stone in June, and expectations hit an all-time low, according to the latest survey from the Conference Board.