not saying that's bad, i'm also wishing them all the luck in the world, and it's been a while since i followed the topic. but it's also worth noting that lightworks finally released its' linux beta last quarter.[1]
personally i'm not a big fan of either the audio infrastructure or gstreamer in linux. but i guess it will allow them more easily to support many video and audio formats, why not directly use a non free build of ffmpeg though is beyond me.
as a sidenote, the state of audio is not really that great in linux either, there is actually a way to use vst plugins in wine, but afair it depends on jack, and some proprietary steinberg library, which means that in linux tradition the average joe consumer doesn't have access to those things.
i think professional audio and video go hand in hand, but then again what do i know.
[1] http://www.lwks.com/index.php?option=com_content&view=articl...