When I execute iteration.mon, I got wrong :

Hash: key
Foo
Steve
Hash: key/value
Bar => Foo
Bar => Foo

When I rewrite script to:
_h = { "Foo": "Bar", "Steve": "Kemp", "Name": "Wade" }
puts( "Hash: key\n")
foreach key in h {
puts( "\t", key, "\n");
}

hh = { "Foo": "Bar", "Steve": "Kemp", "Name": "Wade" }
puts( "Hash: key/value\n")
foreach key,val in hh {
puts( "\t", key, "\t=>\t", val, "\n");
}_

I got:
Hash: key
Steve
Foo
Steve
Hash: key/value
Bar => Foo
Kemp => Steve
Wade => Name