Don't use the word "hurt". Benjamindaines made a good point, more people will still choose to buy a Nano and a phone instead of just an iPhone.
After reading the article, i can understand some points made by Mr. Elgan. Since they release, SmartPhones and similar devices (i should say Blackberries and similar devices, but you get the idea) have been oriented towards the corporative user, who uses Office and Outlook and is also more reluctant to abandon his/her keyboard. One of the major complaints against Palm devices was that they were unable to sync with Outlook, this is the only reason why PocketPCs and other Microsoft PDAs owe their success to Outlook and nothing else. Office is another strong point, so strong it "forced" Palm to bundle its devices with Data Go. I already mentioned in a similar post how users claimed the standard keyboard.
The article also points to the features that can be copied by other companies and again, in the Smartphone/PDA world that is true or at least was true.
Elgan however forgets something very important, and that is that the Smartphone is no longer exclusive for the corporative user, even better, most of this corporative-oriented PDAs are not atractive to young users or creative (designers, photographers...) users and this is a bigger market.