Here is how I understand how is configured the Network Topology when the Omega(2) is used as a WiFi Access Point. Since a picture is worth a thousand words, here's a graph I picked up on the net, and commented using an example of possible IP addresses. As can be seen, Internet can go back and forth through the Omega(2) to support the WiFi sub-network. If the Internet traffic requested by the WiFi sub-network is too much to bare, the Omega(2) will clearly become the bottleneck, thus limiting the number of WiFi users that can benefit from an acceptable Internet speed.