I'm not sure how much it has over the Nexus 7 (GLONASS support?), but it's always good to have more players in the game:
http://www.slashgear.com/galaxy-tab-3-revamps-samsungs-7-inch-android-tablet-range-29279693/
http://www.slashgear.com/galaxy-tab-3-revamps-samsungs-7-inch-android-tablet-range-29279693/