Maybe this has already been posted by my friend who showed it to me, but just in case, I thought everyone here might get a kick out of it:
http://www.wind.sannet.ne.jp/m_matsu/pr ... Country=US
Just like most simulations, it's a bit hard to figure out at first, and by the time you do figure it out, you're bored with it anyway....but if just gotta hit the road while at your desk, it works!
http://www.wind.sannet.ne.jp/m_matsu/pr ... Country=US
Just like most simulations, it's a bit hard to figure out at first, and by the time you do figure it out, you're bored with it anyway....but if just gotta hit the road while at your desk, it works!