Keep an eye on Verisign. I can see lots of ideas that can be adopted here. Verisign owns Jamster (mobile content) and they will be providing the domain names for RFID tags.
Verisign Wireless and Net2Phone will link mobile and WiFi connection
Verisign and Net2Phone have started a trial of the VeriSign(R) Wireless IP Connect Service.
"This new market trial will enable broadband operators to accelerate the deployment of the triple threat -- voice, data and wireless services -- for consumers," said Tom Kershaw, vice president of next generation services, VeriSign.
"By combining VeriSign's Intelligent Infrastructure with Net2Phone's VoiceLine service, Net2Phone's customers will benefit from having a reliable, high-quality calling option that combines landline services, the lower cost of voice-over-Internet protocol (VoIP) calls and the convenience of mobility."
Coincidentally, this months issue of Business 2.0 has a list of 7 technologies that change everything.
#5. Hybrid Cell Phones hybrid services will automatically sniff out and switch to open Wi-Fi networks inside your home or office.