Here is a story from the BBC that comes from the current Black Hat conference in Las Vegas. According to the report, Robert Graham of Errata Security has developed tools that allow hackers to sniff traffic on public Wi-Fi networks and intercept cookies that an unsuspecting web-mail user may be passing from their laptop to their web-mail host. The information contained in the cookies could allow the hacker access to the user's web-mail or social networking site's account but would not likely allow them the ability to change passwords, as this often requires knowledge of the current password. To quote an 80's TV classic, "Let's be careful out there!"
