I am designing a web form optimised for touchscreen mobile browsers, one of those fields is a date of birth entry. On the web form it is currently split into 3 select boxes (one for day, month and year). My initial thought is this might not work so well on mobile as the input might be fiddly for users but using this approach means the data will be validated as opposed to a free input field.
Does anyone have any experience of implementing a date of birth or date field for mobile and if so, approach did you use? Do andriod / iPhones have some built in keyboard / function to handle this?