Where are Smartphones are Going

This accessory has arrived.

At CNET

'Appcessories'

An extension of the smartphone as medical device is what Ideo's Blakely terms "appcessories," a set of highly specialized peripheral software that fulfills very targeted needs, stuff that most people wouldn't want on their everyday phone.

Let's say you've downloaded an art app that maps out a paint-by-numbers schematic of your favorite Picasso. Now let's say you've bought an after-market appcessory, a tiny pico projector with an NFC chip installed that, when you slip it onto the phone, beams out the image onto your surface so that you can get to work on your painting, or vegetable garden planting, or DIY home project.