Shuttle Tile Pic
by Walt br>UPDATE: More Pics here. Scroll down for better detailed pics.
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Found this and thought I'd post it. I enhanced it just a tad, trying to contrast the "scoop" in the center. The black line at the boundary of the two tiles affected looks to be the felt underlayment.

I'm sure we'll hear more today about the potential fixes and whether NASA will attempt to make repairs to this or just cross their fingers. The issue is, some of the fixes could actually generate more heat than a non repaired tile section.
Me, I think they'll have to fix it.