Googling madly ... http://en.wikipedia.org/wiki/GPRS_Core_Network http://en.wikipedia.org/wiki/GPRS_Core_Network http://en.wikipedia.org/wiki/Network_switching

Googling madly ... http://en.wikipedia.org/wiki/GPRS_Core_Network http://en.wikipedia.org/wiki/GPRS_Core_Network http://en.wikipedia.org/wiki/Network_switching_subsystem http://en.wikipedia.org/wiki/Network_switching_subsystem ... OK, makes some sense now. Their recommendations make sense. It's actually nice of them to recommend using WiFi where available (though you'd hope people would be smart enough to figure that out on their own.) Looking at it from a bottleneck/financial perspective I wonder where the constraints are that cause them to want/need to limit data usage. If it's just the UE<->NodeB (Uu) bandwidth, then the femtocell addresses that and maybe they could prorate the data coming through it, if it's farther up the string then it's understandable.