On Fxguide website there is a very interesting video from the FMX with lots of information about Katana and the new open EXR 2.0 and the feature of deep compositing, the article (video) HERE !
Source: http://www.fxguide.com
EDIT:
More informations on awn.com about the integration of deep compositing in Nuke 6.3 scheduled in June !
Article HERE
