I was in Atlanta for a convention this weekend, and on the way down I finished The Quantum Thief, and started Time Travellers Never Die, by Jack McDevitt. I nearly finished it on the way home because the planes on both legs of my return trip took a good 45 minutes to take off after leaving the gate.
I read TTND a couple years ago. I enjoyed it quite a bit (I'm a fan of McDevitt's novels).
Currently, I'm reading "Pickett's Charge," by George R. Stewart. The book originally came out in the late '50s. The historian has a very unique writing style. His sense of humor is non-PC, for one thing (refreshing).