It's taken a long time since that 2005 patent was filed for, but Raymond Li is now finally ready to bring his water-propelled jetpack to the money-spending world. Nailing down a March 2011 launch date and a price of $99,500 hasn't been easy for the inventor, who says his efforts to procure capital and prototyping quotations were mostly met with incredulity -- "almost everyone thought I was crazy." His JetLev personal transporter relies on an engine and fuel tank (which remain on the water's surface) to pump H20 into a backpack that then sh
