I didn't get any pictures in the field.  The corn is really rolled up tight today.

 
The first is planted May 10

 The second is the same hybrid in the same field planted May 17th.

 Just looking at the diameter difference I thought the earlier corn had more rows.  It doesn't.  Both had 18 rows.  The corn was rolled up tight today, and they are calling for highs all next week in the mid 90's and no rain.  It looks pretty good right now, but it could easily be all down hill from here, or, the forecast could be wrong, we could get a couple 1" rains and it might be great corn.  Time will tell.