What this book lacked in likable characters or tight plot lines it generally makes up for in the wonderfully realized world of shared enhanced realities through wearable computing and visualizing technology. Vinge has crafted a believable and extraordinary near-future reality. If only the story and characters housed within it were deserving. GREAT IDEAS, SHAKY STORY. Maybe Vinge should have collaborated with somebody on this one. If he ever returns to this setting, I'd pick it up in a heartbeat.