It's Final Cut Pro, but not as we know it.
Tracking software. Really good tracking software. A cut-down version is bundled with After Effects, though the next package up can export tracks to Motion. I've used that a few times when the default point tracker isn't up to snuff - Mocha does an often-remarkable job of tracking objects as they move off-shot and back again, and can use the relationships between planes to solve camera moves in 3D.Anyway, what was announced at NAB wasn't Mocha integrated with Motion and FCPX, but a new version of CoreMelt's SliceX plugin using Mocha's tracker for masking. Which is pretty damn cool, actually. Demo here:http://www.coremelt.com/products/slicex-powered-by-mocha.html