The high-resolution image of Daphnis is pretty astonishing [1]. You can see the moon back-illuminating a thin silver lining around the crest of the trailing density wave. I missed it just looking at the thumbnail picture!
Both of the moons imaged in the flyby, Daphnis and Pandora, are of interest because they're examples of shepherd moons [2] that sculpt the surrounding ring material. For example, the Cassini Division [3] is made by Mimas clearing material at the 2-to-1 orbital resonance. Daphnis, along with Pan, also happens to be the only shepherd moon orbiting within Saturn's main rings.
Both of the moons imaged in the flyby, Daphnis and Pandora, are of interest because they're examples of shepherd moons [2] that sculpt the surrounding ring material. For example, the Cassini Division [3] is made by Mimas clearing material at the 2-to-1 orbital resonance. Daphnis, along with Pan, also happens to be the only shepherd moon orbiting within Saturn's main rings.
[1] http://photojournal.jpl.nasa.gov/catalog/PIA21056 (click the "full resolution JPEG")
[2] https://en.wikipedia.org/wiki/Shepherd_moon
[3] https://en.wikipedia.org/wiki/Rings_of_Saturn#Cassini_Divisi...