[lars_francke]

Do you have an example of what they could have written? I agree with you that lots (mostly the corporate and startup) of homepages aren't good in describing the product but this seems like a relatively okay summary to me:

"Apache Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC, RDP, and SSH.[...]

Thanks to HTML5, once Guacamole is installed on a server, all you need to access your desktops is a web browser."

It's a tool you install on your machine and then you can access said machine via a web browser, no?