I agree with TomH here, about seeing what is going on and what is new.
The slide show on the index page: It's only showing Mac screen shots. Someone who doesn't know CC very well might thing it is only for Mac.

Looking at the cc site on my iphone right now, and am trying to watch the Form Builder slideshow. When clicking the start button, I get redirected to Vimeo, and there is a black label with three options on the right, two of which I'm able to see when holding the phone in 'landscape' position. The third one is below the view port, and this black label can't be scrolled.
Since I don't know vimeo, I wouldn't know if I 'like' it or not, and as a consequence, I can't watch the Form Builder slideshow. Looks like I have to register with vimeo to have access to the slide show, but I get enough spam as it is, so I'm not particularly thrilled about giving them my mail address.

The home page detects your OS. If you use a Mac, you see Mac. If you use Windows, you see Windows. ;)

For the screenshots maybe, but not for videos. I'm on Windows and the videos are done in Mac for me. Unless you meant only the screenshots are affected by your OS detection?

Yes, screenshots are what I was referring to.

We never had a Windows Form Builder promo video. That video you see now has actually been on our site for quite some time and is not new with the site redesign. Windows and OS X Form Builder are identical except for slight UI changes, so creating 2 videos for a single promo video really was not needed.

Words are getting cut off and wrapped to the next line on pretty much all posts.

Windows 8 Pro
Firefox 22

In Windows also.
Win 7, IE 10

I wonder where those screen shots are that are supposed to be served up according to OS.. I'm sitting here with win7 and Mac looking at the CC index page. They are identical to me. Layout Maker and Menu builder haven't got any screen shots yet, The HTML Editor has Windows screen shots (of course), The Web Editor has Mac screen shots (of course), and then there is that Form builder slideshow.

You now have that ability under the Themes Tab. Check out!
https://www.coffeecup.com/help/myproducts/themes/

That has now been fixed! :)