Google announced this afternoon that the Gmail mobile website has been updated with a couple of new features. Like its desktop counterpart, users can now log in with multiple accounts and bounce back and forth. Users can also append a mobile-specific signature to their message so readers know why you put in so many mizpelt words. The third new option is the ability to create and manage auto-reply messages directly from your mobile device! This way you can turn on that vacation auto-response from the car when you duck out early.