During the Opening Ceremony of the 1984 Summer Olympics in Los Angeles, crowds were dazzled by the entrance of Rocketman.
The flight lasted less than 20 seconds and he never rose more than 30 feet above the ground. Still, everyone was assured that they'd be trading in their cars to commute to work via their very own jetpack by the following year.
The Matin Jetpack will become available to the general public in 2012. It can reach altitudes of 5,000 feet and fly for about 30 minutes. It will set you back somewhere in the neighborhood of $100k, and likely decrease your life expectancy to about a week.