Thank you Les, for sharing this link with us and for sharing your Kentico experince with the world. ;)
To your article - I'm happy to say that Mosso cloud hosting is supported by the 4.0 version without the need to use the patch. Please see the following for more details:
http://devnet.kentico.com/Knowledge-Base/Installation/How-to-install-Kentico-CMS-on-Mosso-hosting.aspx