There's a review of the new Lightworks over at Lifehacker, and it's pretty glowing. From the article:
If you're looking for capable video editing software on a budget (or not), Lightworks is definitely worth checking out (if you're a windows user, at least).
Also, on their website, they claim Stereoscopic support. . . I obviously haven't had a chance to try it, but here's what the site says:
Lightworks introduced the stereo video track to automatically sync left and right eye media files seamlessly in the background. Edit with stereoscopic media in any supported format, without the need for new muxed files, and without the need to change your workflow.
Well, there you have it. According to Editshare's website, it's in public beta, and can be grabbed HERE(registration required).