The new Musicvideo for Radioheads “House of Cards” brings some really Interesting new aspects to Video. Abstract 3D-Music Videos. Very interesting….if this could be merged into a real-time App….the applications could really be stunning….
Also the methods they used to “distort” the data..was interesting…lesson learned: dont do everything digitally….go back and do stuff in the real world… 
…Nah…Papervision3d is in the focus due to its popularity, but it is by no means the only 3D Flash engine out there. Just last week roxik.com shockt us all with he release of http://ecodazoo.com/.
A very emotional, fluid and engaging experience…which at first glance looks like papervision. Performance wise brilliant site…but in the end its powered by a self-written engine named “Sharikura”.
(http://temp.roxik.com/datas/physics/index.html )
Check out the samples and you will be surprised!
Truly stunning: http://temp.roxik.com/datas/max2007/index.html
Apparently the engine is going to be released open-source soon! (src)
Other 3D Engines out there include the following: