Just finished Vernor Vinge's "Rainbows End"

I liked it, though it's very structurally different than his two famous novels, and will soon be famous for having an ending that is at once both clear-cut and mystifying. I reserve the right to post more about this, or not, after sleeping on it. ( In the meantime, a couple of spoilerly thoughts, though I would be surprised if anyone on my flist except zarf has read this. )