The owner manual seems to imply that you should avoid this, but it is nice to have when you forget to disengage the parking brake. On page 9-32:
Originally Posted by shoxsie
Notice: Driving with the parking brake on can overheat the brake system and cause premature wear or damage to brake system parts. Make sure that the parking brake is fully released and the Electric Parking Brake Light is off before driving.
Automatic EPB Release
The EPB will automatically release if the vehicle is running, placed into gear, and an attempt is made to drive away. Avoid rapid acceleration when the EPB is applied, to preserve parking brake lining life.
2013 White Diamond Volt, fully loaded, built Dec 2012, delivered Dec 20, 2012, purchased Dec 31, 2012 (D-3520)