Isn't the main point that no one dials anymore on touch screen phones? You can most of the time even click on a number in an email/website, you have all contact

Isn't the main point that no one dials anymore on touch screen phones? You can most of the time even click on a number in an email/website, you have all contacts in your address book. Why would someone optimise a problem that is on a past curve of technology? I would love to see this research put into text input though...