Twice.com has confirmed an earlier report by Hollywood in Hi Def that the highly-anticipated 3D Blu-ray version of Avatar will be available in early December, but only to those who purchase a Panasonic 3D Vierra television.

The release date wasn't confirmed yet, but the earlier Hollywood in High Def report indicated that December 1 would be the launch date for this 3D BD release. It also wasn't clear how long this exclusive engagement with Panasonic would run for, although it was said that it would be, "unusually long," which means that the only way Avatar fans can see the film in 3D BD is by purchasing a Panasonic 3D Vierra TV.

Twice.com is also reporting that Panasonic is working out details for a program that would make the 3D BD version of Avatar available to consumers who have already bought a Panasonic 3D television.

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We had previously reported a few weeks ago that Avatar wouldn't be released in 3D Blu-ray until 2011, because director James Cameron and Fox Home Entertainment wanted to allow time for the 3D home entertainment market to grow. The Twice.com article revealed that this launch was only, "recently determined," so it seems James Cameron and Fox Home Entertainment had a change of heart sometime within the last few weeks, although, it is likely that the non-Panasonic-exclusive release will take place much later in 2011.

We'll be sure to keep you posted with any further details on this upcoming Avatar 3D Blu-ray release as soon as more information comes in.