Describes the type of keyboard.

Default Default keyboard for the current input method.
ASCIICapable Keyboard displays standard ASCII characters.
NumbersAndPunctuation Keyboard with numbers and punctuation.
URL Keyboard optimized for URL entry.
NumberPad Numeric keypad designed for PIN entry.
PhonePad Keypad designed for entering telephone numbers.
NamePhonePad Keypad designed for entering a person's name or phone number.
EmailAddress Keyboard optimized for specifying email addresses.