This collection is a tour of fascinating ideas. The philosophical/moral implications of technology pop up a lot. Some of my favorites:

The Merchant and the Alchemist's Gate: hear LeVar Burton read it here
Exhalation: A character's intense self-examination
The Truth of Fact, the Truth of Feeling: A pair of related stories discussing technology's impact on us.
Anxiety is the Dizziness of Freedom: Branching timelines, possibilities, and their implications for the meaning of personal choice.

While I enjoyed all of the central ideas, some of the individual stories lost me. For example, I found the premise of "The Lifecycle of Software Objects" more interesting than the actual story. Ditto for "Omphalos".