A leaked build of the Gmail mobile app for Android devices showcases the new features that could arrive on the Android 4.2 edition.

AndroidPolice has released a video showing two feature additions. You can now swipe to delete or archive mails.

Users also get the ability to pinch and zoom in on email messages. Both of these features would come very handy to Gmail users on Android platform.

Would be interesting to see if this update would be released to everyone or just Jelly Bean users.