Yes, switch is not a function so it should have a space before the (. I am not a fan of inner-space, so I would write it as:

switch (foo) {

For those that do use inner-space:

switch ( foo ) {

I don't think that inner-space give more readability in the switch statement.

This is in-line with the way that functions are declared

var foo = function( bar ) {
}

switch( bar ) {
}

the style in which the switch is declared seems accurate to me.

switch is not a function, it is a statement, so it should have the space before the paren to make this clear. Also, practically every example I could find, outside of this instance, shows the space in front of the paren.