Received my white 830 back plate less than a week after ordering it, which was surprising and impressive considering it came from the UK (ordered from "Fonejoy" on eBay). Fit perfectly and looks great.
Unfortunately, though, wireless charging is flaky at best, which is a deal-breaker for me. I have DT-900 and 910's all over the house. It was my favorite thing about my 920, the reason I didn't buy a 1020, and part of why I justified the 'sidegrade' to the 830.
I popped the original covers from AT&T back on and both the green and black work perfectly. Super bummed out because I much prefer the look of the white back, but hard for me to choose form over function.
Anyone had any better luck with replacement backs and charging? Or anyone have a white back they want to trade for green or black?