The author makes a big deal that you have to do Command+Tab to switch applications, and then Command+` to cycle between windows in that application. Well, frankly I think thats the better way, I'll give you an example:
Let's say (as you do) you have a dozen browser windows open (maybe in more than one browser) ... do you REALLY want to sit there hitting Command+Tab dozens of times ? No. Its quicker to switch to the desired app and then cycle within the app. That way you don't cycle through the browser when you don't need to.
Finally there are some, frankly bizarre, comments in the blog post, such as:
> However, that keyboard doesn’t have the Option (⌥) or Command (⌘) keys like on my Macbook.
Well, yeah, its not Apple's problem if you choose to use a PC keyboard with your Mac. Most people would either use the built-in Mac keyboard or buy an external one (third-party Mac keyboards are available from the usual suspects if you don't fancy an Apple one).
I gave up reading the blog post around that point ("The Undecided" header to be precise).