It is really hard to take photos during the morning Eid since it is simply rude and not in the culture where you maintain anonymity with your clothing. The prayer we went to was in the Royal Commission in Jubail, just by the Persian Gulf in a beautiful location where everyone was either dressed in black (women) or white (men), and the kids being the exception with their brightly colored clothing and heels. It was quite adorable to see the little boys dressed in the traditional Saudi outfit as they fidgeted with their headdress and long train of white cloth.
From my most recent trip in January, 2010. Not the easiest country to take photos.