Right now there is one really serious competitor coming out with it's brand new open source non linear video editing product. I am talking about Lightworks Oscar winnig Editshare which has been released open source last year. Feel free to discover their website Our progress with porting Lightworks to Linux and Mac OSX is something we get asked about every single day. Were happy to report that we are making huge strides towards completing the port and were aiming to have the first beta release available on 19th December 2011.
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