We would like our app to display one of the built-in keyboards (specifically the numeric one) and be able to respond to key presses and such, but not via anything on the screen such as a `UITextView`. We're actually just going to send those keystrokes out over the wire for something else and didn't feel like re-inventing the wheel with the keypad. Think of it as us using the keypad as a matrix of UIButtons rather than us having to manually create our own, then worry about look and feel and such.

That said,

1. How can we show the keyboard with no `UITextView` or similar controls on the screen
2. How do we choose which one to show (again, we want the numeric one.)
3. How can we respond to KeyDown/KeyUp/KeyPress messages or what have you.