This might be interesting to others on this mailing list:
It seems that the venerable Lightworks NLE is transitioning into
OSS-land. This is a very mature and advanced editing platform, it will
be interesting to see what OS(s) is supported, and what it's OSS form
will take. No word on when exactly it will be released, but I've signed
up to be notified just as soon as it does. Good news to all, I hope!