The shadow on the logo is too dark and looks wierd. Also, I'd put a call to action, like "Download" or "Learn" in a more visible format (maybe on a button) in a larger font, above all the "blocks", along with the content of the Statistics block.
The PSF block at the bottom looks out of place. (I really love the way you show additional information when I hover on the links in the second navbar. I'm not sure how that extends to touch based devices, but you could probably present the PSF block in a similar way.)
The "Socialize" link looks out of place too and should probably be on the upper navbar. (The other "actions" in that block are related to the site itself - search and text size)
I agree with the others that that code sample should actually be an editor with the ability to actually execute code.