The app store is full of speed dial applications. Dial 1, Dial 2, Dial 3, etc. Dad, Mom, Girlfriend, Boyfriend, etc. You get the idea. I think there are some free ones and others that go for $1 each. I search in the App Store for "speed dial" and got a pageful, almost all of which are examples of this kind of application. And I'm reasonably sure that isn't all of them.
I don't know if they are faster than OneTouchDial or not.