A mobile device is provided having a rotatable keyboard. The keyboard is attached to the mobile device and is rotatable in a single plane with respect to the device's housing between a first and second position. A plurality of keys are provided having first indicia in a first orientation relating to key functions in the first position and second indicia in a second orientation relating to key functions in the second position. The indicia are properly oriented with respect to the user in the first and second positions to display a telephone keypad and an alternate keyboard. The arrangement provides greater ergonomic comfort to a user when entering text. The mobile device can assign functions to each key based on a determined keyboard position and can include a weighted end piece to protect the rotatable keyboard from potential damage due to impact.