Citing financial concerns, the developer of the long-delayed Atlantic Yards project in Brooklyn has scrapped plans for a Frank Gehry-designed $1 billion glass-walled basketball arena for the Nets in favor of a less expensive arena.  The new design, which will cost about $200 million less, comes from Ellerbe Becket, an architectural firm based in Kansas City, Mo., that specializes in convention centers, stadiums and arenas and designed Conseco Fieldhouse in Indianapolis...more.