1.3 viewer on linux?

Is there a standalone 1.3 viewer on linux? Previous threads on the topic were unhelpful.

viewtopic.php?t=199 suggested using the XSI viewer plugin, but they couldn’t get that to work. They finally got it to work with the FTK, which I can only find for windows.

Any other viewers? What happened to the SDK & open source viewer which came with earlier versions of collada?