Opera 9
Opera 11
Safari 5 (Mac, pre validation nerf)
Firefox 4b12
Chrome 10
Mobile Safari (iOS 3.1) Keyboard
The Low Down
The email input type is for (you guessed it) email addresses. Just by virtue of
having this type applied (and it has a name attribute), the value will be validated.
Safari 5 validates on Windows but not Mac. An older version of Mac Safari (5.0.0) had basic form validation but it was pulled and still not back as of 5.2.
Falls back to a regular text input.
Mobile Safari does no validation, but brings up a keyboard which features an @ key.
Can be combined with the multiple attribute for accepting more than one but still
validating. (Opera 11)