Apple iPad USB Audio Out Camera Kit

Word on the street is the Apple iPad will support digital audio out (16/44.1 or 16/48) with the optional "Camera Kit". From what I've researched so far, this small USB connector allows the iPad to send a digital signal to a DAC. I'm very eager to hear if, and how well, it works....

Has anyone tried it? How does it sound? What DACs and music files have you used? Anyone....anyone....Bueller....anyone.... ;)

Thanks....