So the only way I could get Chrome to allow me to access the old "new tab page" was through an internal extension call. Typing chrome-internal://newtab into the address bar simply triggers a search for that term. But on that page I was looking at the source to get the internal sources for some image files to customize the iOS 7 New Tab Page extension when I noticed a hidden div that looked interesting...
<div id="app-launcher-promo" hidden>
Remove that hidden attribute and you get this little gem.
Following the "Learn more" link quietly (really no downloads or installs etc.) adds an application drawer to the OS X dock. This is all you see in the browser, and note that there are no links to download or install anything.
I am using Chrome Canary which explains why the icon is all yellow.
On a side note the iOS 7 New Tab Page is interesting, but I am not a fan of iOS, there are some extensions that it fails to open and the bookmarks bar is missing. Also it is a little cheesy at points - the fake wifi signal and battery indicators...