I'm an editor since 1999. I edited with AVID, Premiere, Media 100 and SphereOUS (I know few people know it and I think it doesn't exist anymore). FCPX was just the more promising software I ever used. With this release it just became the best software I know. I already edited 5 long documentaries with it and many little things and I loved using this piece. Apple (I'm not an unconditional apple fan, I don't like their politics sometimes, for example the last Macbook Pro) put some real improvements to FCPX many wanted. Just this once, Apple listen to his customers and did a great editing software. Can't wait to use it.
There's also LUTx from CoreMelt.
Do someone know if the Atoms Shogun can also record the C4K (4096x2160) of the GH4 ?
In the specs they only talk about the UHD (3840x2160).