P: Tone Curve As Local Adjustment

Just in case we don't get all adjustments local in Lr4, I'd like to toss in the idea of a local tone-curve adjustment.

If you've never applied local tone curves, you'll be in for a real treat. If you have, then you know what I'm talking about.

Summary:
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1st choice - all adjustments locally apply-able.
2nd choice, top additions to locals, prioritized:

1. Luminance Noise Reduction - preferably with independent detail/contrast controls, but independent controls far less important for NR than for sharpening.
2. HSL
3.a. Tone Curve
3.b. Independent sharpen control settings.

Notes:
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Really hard to decide between independent sharpen controls vs. tone curve.

- We already have local sharpening (and de-sharpening/masking, and the sharpen "auto"masking), and together with local NR, would afford a fair amount of flexibility.
- And we already have basic local tone controls.

But being able to apply a curve allows much better local tone control... I mean fill & highlight recovery would be nice locals to have too, but far less needed once a local tone curve is available...

Likewise, temp & tint would be nice locals to have too, but far less needed once HSL is there...

Rob