I frequently think a key issue also is that our device can do so much at once. So that from using it completely within context has the big risk of pulling you completely out of your current context. Like going from checking a map to email or as with this post from taking a picture to the feedreader to blogging.
About a decade ago, I went out to lunch with several friends in Berlin at La Bonne Franquette, a French restaurant near the Nokia office where they all worked. Beyond the good company and the good food, the meal was remarkable in that it was the first time I witnessed a group of familiars simultaneo...