Awesome feature, thanks Riven!
Both Riven and Kappa’s applet tests work in Safari 5.1.2 on OS X Snow Leopard.
I can see a coloured trianged and a bouncing checkered ball. I assume both are non-interactive i.e. no input control.
A cool feature would be a works-for-me or is-broken selection associated with each applet.
How about sharing the LWJGL JARs so they don’t need to be downloaded for every applet? Or make this optional if someone wants a specific LWJGL version?
They are already shared 
Currently 2.8.2, I do intent to only support the latest or each major release.