Why that thing on Nexus One?

I can’t get my head around one feature of Google’s superphone: why did they put that scroll-click-button at the bottom of the phone? Shouldn’t the touch screen be enough to use the phone? Besides, being so close to the bottom edge, can it really be used? If anybody is still thinking that Google wants to become a hardware manufacturer, that detail alone shows how G still has lots of road to cover.

But I don’t think Google is going to compete directly with HTC, Samsung and all others. I agree with Fabrizio, Ars and HBR: Google is disrupting the mobile phone market in the USA introducing what us Europeans had forever: choice. In Europe we can choose the phone we prefer and use it with any carrier. In the USA carriers tend to make monopolistic agreements with phone manufacturers, so consumers that want a phone usually have only one choice of carrier. Think iPhone which is limited to AT&T in USA but in Italy you can buy it from three different carriers. For this Nexus One is like the iPhone: it’s a game changer. I think that other hardware manufacturers like Nokia could profit from Google’s move, too.