Yeah it has... and guess what my 4.15GHz i7 gets? 7.6! still not full marks! Pretty crazy.
My tripple channel DDR3 RAM only gets 5.5 even though it completely crushes my Q9450 DDR2 system in bandwidth.
GTX 280 gets 7.9 for Aero performance, and 6.0 for gaming performance. Which is the same as above 8800GTX... go figure. Maybe it's testing it in 2D clocks and not 3D.
WD VelociRaptor gets 5.9.
I'd like to see what my SSD gets as SSD performance is meant to have improved a lot, but i've got my Vista install on it.
Which version of w7 are you running? I'm on build 6801, dunno if they've changed the WEI formula between this and the newer versions.
Funny about the RAM, with my 8GB DDR2 @ 1000MHz I get a 6.1

Also, I dunno which SSD you have but I get a 6.6 with my OCZ Core V1 64GB. I'm not sure what it goes by for that: if it's just disk transfer rate or if they factor in your additional drives/amount of free space etc.
And as for the idea that Aero needs lower graphics power so you get higher scores with that thon gaming graphics, well I installed 7 on my old laptop with integrated graphics (DirectX 9). I've since sold it on, and can't remember the precise scores, but I know I got a 2.2 for Aero but something higher for gaming, which confused me somewhat. Don't know if it's to do with the DX version.
Oh, and it specifically says on the WEI page "3D business and gaming graphics performance" - 3D, not 2D, so I don't know about the weird gaming graphics scores.