How Can I Make a Touch-Screen Phone Number Form Input Like Grocery Stores Have?

Question

I'm looking to create a tablet-kiosk where a customer would enter their phone number, then submit it. Ideally, I want to mimic what some grocery stores have where you see what looks like a phone keypad on the screen, and you touch each number to enter your phone number. Once the customer hits "Submit", the collection of 10 digits gets posted as a form input. The screen would need to support hitting the backspace key to correct a number. Any ideas on how to create something like this?

Thanks in advance.

• Joe