If you thought your OTA update took too long, how about four days? That's how long the Curiosity "brain transplant" took, and is now finally complete. This now means that the main computers have switched over from landing mode, to surface mode -- and thus we hope -- meaning the rover's good to go. That said, it's still a painfully slow process, with Curiosity's wheels likely remaining steadfastly motionless for at least another week -- and even then we're looking at a