I admit not many frontpages have that. However that's another aspect that I like about it. It uses new code (CSS3) that many web developers are still unaware of it or have yet to figure it out. It's a new function that does well. Even Mountain Project
has a box shadow around the images of the site. It's much better than the dull grey border in my opinion. It fades out and makes the image stick out.
The yellow shading was Matt's idea (which I liked). Originally I picked a very light blue. I liked green better but didn't even try it because I knew it would be out of SP's color scheme. But then Matt proposed yellow. I fine tuned the color using a color scale. Another idea that was thrown out was keeping it white (before the yellow idea was figured out). I personally was against it because the sides did not stick out as well and it made the template look a bit more boring. Could you email me a screen shot of this bug? The border on the left side uses a 260px position change which Safari might not be reading.
Perhaps I might be able to write it in a way that is mobile phone friendly.