Jack's problem is often wording
I say this with all kind intent ... but his descriptions in this article are so weak that he's not giving most people a chance to even understand what he's saying. You have to already know exactly what Ubuntu/Unity/Dash offer to have any chance at all of understanding what features he's (vaguely, indeffectively) pointing at.
Instead of "You can search Amazon!" he should describe more clearly how Ubuntu is providing for integrated search of content on your device, in your cloud, and available on the web - starting with Amazon content, but heading beyond that, and with community contribution for plugging in other sources.
Instead of his description of how Dash makes keyboarding better, he should clarify that he's talking about are not just the file/app search kinds of features that other OSes also have, but also the integrated menues from apps - unique to Ubuntu at this point - that permit keyboard menu activation in applications without resorting to memorized hotkeys.
For "integrated web services", he should describe how the approach gives you a much more flexible "live tile" like approach, not limited to things you can get from any particular store - how Ubuntu has established a standard, implementable by any website (and already implemented by a couple dozen of the most popular websites on the net) so ANY website can express itself as a live tile - without having to create an app.
For remote server login - well, done good there.
For UI consistency across tablets/PCs/laptops - he should clarify that there's no "are you RT, or aren't you RT" divide in getting to apps, in how apps look, in how you interact with them, etc.
He needs an editor. (Imho)
