Preliminary work could begin as soon as next month on the ambitious $500 million plan to transform Governors Island into a premiere destination for cyclists, nature lovers, large-scale music concerts and rock climbing. Last December a consortium of five design companies was chosen to turn the flat southern part of the island into an oasis with manmade hills and a shoreline promenade. Ultimately (say, 2013?) 90 acres of parkland will be remade for anyone willing......