Transform the Web into a universe of virtual 3D worlds with Adobe® Atmosphere™. With Atmosphere, you add a third dimension to the Web experience by creating realistic and immersive environments that offer a revolutionary approach to content, navigation, community, and communication.

Just came across this at http://www.adobe.com/products/atmosphere/main.html. Looks pretty cool and could liven up the browsing experience.

The populality of a 5MB plugin, and the ease with which Worlds can be created remains to be seen, but this certainly has potential if it gains mainstream support.

If they could just transfer to the Unreal rendering engine between Beta and launch it would be great!