I got my "new" marker lights installed yesterday at Hummer Cincinnati. I don't know where that 1/8/07 date came from.
They had two new kits and 18 repair kits to fix the defective ones in inventory. Appears that the GM fix was actually an additional skeleton of plastic underneath the plastic cover to stiffen the structure. The new kits had the stiffer skeleton moulding into the one piece cover and the repair kits had an additional skelton piece that had to be installed with the older parts. I think this was a bit different solution than what everyone expected. Everyone (including the dealers) was expecting an additional gasket or seal to prevent wind from getting under the plastic cover.
I drove my H3 home on I-75 for about 2 hours at 75-80 mph. No wind noise that I can tell.