[Mhodge@q1w.net]

To be sure the switch view button is shown on a phone's browser including iPhones, I modified /Xcart_Mobile/customer/core.js

Change this:

}

if ((viewport.width >= 1000 || viewport.height >= 1000)) {
$('.switch-mobile').css({
'display': 'inline-block'
});

To:

}

if ((viewport.width >= 50 || viewport.height >= 50)) {
$('.switch-mobile').css({
'display': 'inline-block'
});