My brother is a trucker and pre-ordered this.  He was out on the road when it arrived, so he asked me to charge it, update it, and play with it.  FUN!  I am not a trucker, but from what I hear from my brother, the tools on this device are awesome.  It looks like it would be very helpful for him.  The thing is huge, a 7" screen!  Overall, this seems to be a great tool.