Skype's cannibalization goes on.

Recognize the Risks: VoWiMAX is Vulnerable to Loss ...  "The growth of third-party VoIP offerings like Skype and Google Talk will threaten to be an even greater source of cannibalization"

Peer-to-Peer Networks, DRM and OSS/BSS Skype uses peer-to-peer technology to bypass telco infrastructure (circuit, VoIP or otherwise)

Intelligence Support Systems: Their Time Has Come Telecoms say 70 percent or more of broadband access traffic is P2P, and that includes free or almost free services like Skype.

TRA bans Internet Cafe VoIP

Thoughts on MuniWireless There are not too many manufacturers cranking out WiFi enabled cellphones that can also do VOIP. When you are in the network, you can switch to SIP with TruPhone or Gizmo and make free calls.

Wireless network oligopoly and consumer welfare
Motorola the Second Largest Cell Phone Maker
UUSee Internet television and interactive video operator in China Announces US $23.5 Million Financing

Chitchat helps phone bill company (Reverse phone look up)
Cellular Mobile Phone Number Reverse Lookup