Google is about to roll out new features in Gmail which seems to better perform your email management. Something like that, Google has already offered last year which was named as Priority Inbox. This time it's a bit different, in fact more better perhaps.
Some applications that access your Google Account from your phone, desktop, or other devices (like accessing Gmail(non-web-based) on your Phone or Outlook, desktop Picasa, or even Google Talk) cannot work with 2-Step Verification. To use these applications, you'll need to enter an application-specific password in the password field instead of your account password.
Like other Google products, you can also try the new Google makeover on Gmail before it's rolled out. Check it out how can you do that.
Google+ has come with user friendly features which will give you up hand to surf the internet in more better way. The Top Navigation Bar is the place where the features have been added and will go along with you always.