First of all..I would like to say that Gmail is out of Beta..yep..After a long time when they have integrated the best of world in their email system,it was the right  time to rip off the tag,and they did it.Further,with the world going mobile,they took some of the steps to better  enhance the security even a notch above than other email services. It helps to know that even the best of us forget our passwords from time to time and In fact,the sheer amount of people visit Gmail help center everyday just to recover their passwords. To help with these situations, Google went a step ahead by adding the ability to recover your password via text message.

In order to access this feature,sign in to your account and select ' Change Password Recovery Options ' enter your cell phone number and click ' Save '
The Next time you forget your password, enter your username on the password-assistance page, and Google will text you a recovery code. No need to check another email account or even leave the page.
In general, it's a good idea to add as many password recovery options to your Google Account as possible, like a secondary email address and security question. And don't forget to keep them up-to-date.
Afterall,we all make mistakes :P