Black dots are normal. I had them on my Galaxy S II too. There are supposed to be some without but I don't believe that.
Sent from my Galaxy Nexus using xda premium
My vibrant does not
but my Nexus S has one..
I dont care about that since even it is in lowest brightness it is not obvious.
However under the lowest brightness in Galaxy Nexus I can see that already at night,
it is VERY obvious when I take picture at night...which is not acceptable..