The very fact that so many apps (Facebook, Twitter, Mail etc) remain signed in while not in use prompted me to use a lock code (albeit with a 5 min grace period, a trade off for convenience). I can't see why anyone wouldn't want it enabled.
I think most devices paired with an ActiveSync (Exchange, GMail) account are required to use lock codes.
I think most devices paired with an ActiveSync (Exchange, GMail) account are required to use lock codes.