Nope, you just got used to the USB plugs, i too know the orientation ot the plugs on my things and it goes mechanically without thinking.
Not really, memory is the main thing on this.
I just got my first X2 a couple days ago and have a new one already shipped. One question is how do I know when these are fully charged. No lights are on when I use my pass through. When I charge with the USB charges, there is a red dot. Will that dot turn blue when charged?