say you have a modal view with a simple form and a cancel-option. as soon as the user selects a field the keypad shows up and usually provides a "Send" or "Search" Button to send the form.
is it ok to rely on this one method/button for sending the form? or would you add an extra call-to-action button below the form.
i think before the keypad appears a call to action button is a good way to show that you can or have to send this form. on the other hand its another UI element that takes screen-space and the users attention.
how do you layout your mobile-forms (webapp or native app)