HTML5 Form Elements

Yes, I'm referring to having a module that implements the various form elements via the Form API. The concern is more or less for mobile browsers like on iPhone or Android. They recognize a textfield of type 'email' rather than simply type 'text' and when the virtual keyboard is loaded, an '@' symbol is made available without the user having to switch to the alternate keyboard. Same thing for type 'tel' except the keyboard defaults to the version with the numbers on it.

The reason I think this should be a separate module is that a module that creates a form should control whether a textfield should be type 'email' rather than type 'text'. A theme has no way of determining what type to render the textfield as. It is a possibility to form a standard flag that modules can pass to textfield elements and then themes can override the theme_textfield and render out the type appropriately. But this would need to become a standard of sorts among modules and themes.

Or back to my original idea is another contrib module implements a #type => 'email' element (among others) for the Form API and modules can check if the module exists and use the alternate type instead of simply 'textfield'. Then everything out of the box would work. Also, the contrib module can do a simple check if the browser is the iPhone's safari or Android's browser and only display type 'email' for those browsers else fallback to type 'text'.