Comment Actiontec as Cable/DSL Fallback or Daisy-Chained (Score 1) 233
The way that most of us would use the Actiontec is to plug it into our wired/wireless router/switch, just as we would our cable/dsl modem. This would use one 100Mbps ethernet port. This leaves one unused 100Mbps ethernet port.
Items that have not yet been mentioned:
1) One could connect the second 100Mbps ethernet port to a cable/dsl modem and, by modifying the Actiontec's software, use the 56k modem as a fallback internet connection. If the Actiontec notices that the connected cable/dsl modem has become unresponsive, it could dial-up an ISP using it's own 56k modem.
2) One could also daisy-chain N Actiontec's and (with software modifications) have an N * 56k connection. ( One will also need N distinct phone lines.)
Item #1 is probably the most interesting to most of us, but item #2 is not a bad feature either and would likely use similar code. If anyone out there explores either of these ideas, I'd like to hear more about it.