"infinite resolution"
No real explanation of nodal points, or much of anything else at this point so there's not much to say.
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Well, it sounds like they came up with new marketing terms for the same stuff the latest generation of RAW editors have had for a year or two now. Infinite resolution is just another way to say parametric editing - ie. it doesn't work with pixels, but with paths, vectors and other methods which tell the program how to adjust the pixels, rather than adjusting the pixels themselves.
Nodal points are indeed poorly explained, but they sound a lot like the Lightzone approach - although i don't know how the horizontal stacking is implemented.
In fact, the main features seem to be exactly the same as Lightzone. But the hype doesn't show any improvement over what Lightzone, Lightroom or Aperture are doing already.
And hyping and publically releasing an alpha is a bad business decision.