I'd be pretty interested in the rear view cam, but am now wondering if I spend enough time in the car to warrant watch a vid one it.  I have dozens of DivX films, so the region thing wouldn't be a problem.  Do you find you spend much time in front of a 7.5" screen watch vids? 
  
 I am in the US weekly, so again, not too affected by the region 2 setting and re faults, I can easily return stuff to the shop.  I have found however, that most products sold in the US come with pi$$-poor warranties, often only covering 90 days of workmanship & parts, then only parts fro the next 9 months left in the warranty. 
  
I hadn't noticed the frequency thing, I'll check it out in the next few days in the US.  The main reason I would buy stateside is cos of the weakness of the  dollar.  It does represent very good value right about now