i found this proposal interesting:
http://strategy.wikimedia.org/wiki/Proposal:Java_applet_support
If only we could get them into JGO. 
Ew. Keep applets, flash, video, and audio out of my wikipedia please.
A picture is worth a thousand words. A Java Applet is worth a thousand pictures! …okay, maybe a slight exaggeration. 8)
Wikipedia already uses applets in a few places (the most obvious being for ogg playback). This seems to be more about adding ‘proper’ back-end support (ie. allowing source/resources/license to be stored on the wiki and compile the applet server-side). Currently actual applets end up being stored on user’s pages at the moment which is obviously somewhat fragile.
hehe, next thing you know wikipedia will also be a java game site lol.