Really great stuff. Especially like the idea about intelligent AI finally evolving from the arms race between developing a good spam bot vs making an intelligent spam filter. Software that pretends to be meat. Nicely done.
If anyone here hasn't read Accelerando I highly recommend it.
Furthermore, his unpublished but freely available novel Scratch Monkey is also a very good read. If you've read Accelerando it is interesting to see the formation of many of his ideas.