Book — Lady of Mazes by Karl Schroeder

Set only a few millennia hence, and confined to the re-engineered solar system, under the adventure yarn surface this is far more angsty take on being human after some sort of a Singularity than the low-end posthumans of House of Suns. What he seems to posit as the central dilemma, well, I'm sorry, I'm not seeing the problem here -- and it's not as if being unoriginal and there being many other people doing exactly the same as you are doing now has bothered many people. Towards the end, I found myself more in tune with some of the supposed antagonist factions than the nominal lead character's agenda.