Graham that’s really cool. I just bought the Kindle edition of Timesplash.
You might be interested in Neal Stephenson’s new site Hieroglyph. A bunch of science fiction writers have congregated there with a focus on making science fiction optimistic again, and inspiring a new generation of engineers.
Coincidentally, just today I posted something on the site about my climatecolab fusion entry: http://hieroglyph.asu.edu/forums/topic/its-the-21st-century-wheres-my-fusion-reactor/