>AFIK in US in all states we use miles and pounds instead of kilometres and >kilograms. Since I used to use metric system all my life, it's tougher for me >to adopt US system. I still have to translate tempreture in Celcius from F...

Right.

>Regarding dates - it's simpler to use mmddyyyy notation.

Why is it simpler? I have applications that switch from british to american and back again.