Hello OpenLaszlo!
Welcome to my tips and tricks on development of Laszlo Applications. Laszlo or now better known as OpenLaszlo is an open source RICH INTERNET CLIENT Development system. Laszlo Systems has generously open up Laszlo as an open source system about a year ago.
Laszlo basically enables developers to write Rich Internet Clients using XML (+ javascript, LZX, and other data manipulation languages at the background)
Do pay them a visit. You will be impressed
Learning OpenLaszlo : Tips and Tricks 