"Magic as a Metaphor for Ubiquitous Computing" - http://www.orangecone.com/ambidextrous_i6p36_37.pdf http://www.orangecone.com/ambidextrous_i6p36_37.pdf [pdf]

"Magic as a Metaphor for Ubiquitous Computing" - http://www.orangecone.com/ambidextrous_i6p36_37.pdf http://www.orangecone.com/ambidextrous_i6p36_37.pdf [pdf] and "Wizard School" - http://steve-yegge.blogspot.com/2006/07/wizard-school.html http://steve-yegge.blogspot.com/2006/07/wizard-school.html may be of interest to you.