Just received on Twitter (thanks Edbott for sharing) : The first pictures of the new Windows 7 logo/boxes!
On the image above you can see the logo on a Microsoft Employees only Facebook Group. The logo is also shown on the Windows Lounge website. Below are the boxes which were published on a Polish website CentrumXP.pl.
As far as I can tell they’re images aren’t officially released, but some pictures showed up on a Chinese website. They show the same ‘7’ logo as on the Windows Lounge page and the boxes I showed you above.