Google is Rolling Out Redesigned Gmail Mobile App for Android
Google has began to roll out a newer, cleaner, more organised Gmail experience for Android users. Over the next several weeks, upon obtaining the update, Android users can expect myriad features for Gmail mobile. Like the automated dissemination of your E-Mails via Source -- finely organised into "tabs". The categories include: social networks, promotional offers, updates, bills, and receipts. These tabs will be arranged along the left side of the App. Next, pull-To-Refresh for Gmail makes its debut on the Android for users. Lastly, the Gmail mobile App now shows indications for new messages, rather than unread messages.
Source: Android Police