YES they have been in the Summer Olympics before for many years/games now. It's funny to read how surprised all of you were to see Laos on this year. ^_^
You hardly heard or haven't seen them before is because they never made the cut, probably out of the game at the very first round. Lao's government needs to support their athletes or atleast get them decent uniforms or supply them with proper wears they needed for competing in the games. I knew one person that was in the track and field when the Summer Olympics was held in Atlanta City he didn't even have proper/good running shoes. He have to asked his brother that live here to buy him one so he can use it for the Olympics

Lao's government needs to stop their greediness and corruptions so they can put the money to better use, and that is for the peoples of Laos. :yahoo:
LOL OK don't want to get into politic, but just thought I should mention it.