Samsung's ten-hour laptop fuel cell

Samsung says they've developed a new fuel cell that can power a laptop for up to ten hours on one 100cc cartridge of methanol. Which we'd be excited about if hadn't heard announcements about a half-dozen other similar
"breakthroughs" in fuel cell technology from NEC, Toshiba, etc over the past year. Could someone just get down to business and sell me a laptop that will last more than 45 minutes without needing to be plugged in?