appcessory?

Tech innovation hand in hand with app innovation- hence the "appcessory". A fad? Compensating for the mainstream needs? Is this a sign of the specialized super-phones yet to come?
http://www.fastcodesign.com/1669277/paypal-launches-paypal-here-a-competitor-to-square-designed-by-yves-behar
http://www.fastcodesign.com/1669449/iphone-smart-dot-is-a-pointer-for-both-the-real-and-virtual-worlds