Well, one thing I'm not too comfortable with about the way you installed yours was that you said the camera is mounted on the license plate frame. I'm looking for a more secure mounting location (secure in the sense that I wouldn't want someone to be able to take the camera by unscrewing the license plate frame and clipping the wires). I may have misunderstood your mounting location and technique though.
Just for everyone's reference, the webpage at oemvalue is here:
http://www.oemvalue.com/installcamry07.htm#acc
If the Lexus OEM reverse cam can mount securely on the Camry, I think I'd rather go that route and spend the extra $$. I'll have to do some more research there.
Again, thanks for writing about your experience - did you have to reset the NAV system to get the reverse cam detected? I'm concerned about that step too, since I have the 6.1 NAV version and can't go into the diagnostics screen.