Zero rating: a boon to consumers, or a net neutrality nightmare?

[Commentary] Although the concept of zero rating appeals to consumers who routinely max out their data plans watching Internet video, the program has drawn some criticism from activists that see the well-meaning program potentially undermining the principles of network neutrality, which aspires to enable equal access to all content and services transmitted on the Internet. To review alternative perspectives on this topic, we have compiled the arguments on various sides of this issue:

Zero rating: An asset for the developing world and a wireless innovation -- Aside from first-world consumers maxing out their data plans watching Netflix, zero rating is a useful tool in the developing world.
Zero rating: A Trojan horse intended to weaken net neutrality -- Despite the rush for some companies to embrace zero rating, some activists have questioned whether the benefits outweigh the potential erosion of net neutrality.