Can someone explain something about wifi?
I have read that build quality (metal body?) precludes incorporating wifi. Yet, the wifi card manufacturers say their product works with the 5DIII in its SD slot. If that's the case, then why would camera manufacturers be unable to design a camera body that doesn't have the ability to use wifi. It seems they should be able to simply shift the wifi portion to another part of the body.
Honestly no reason at all, coming from a career in the IT world before I have worked on many laptops at board level and most have the wifi "chips" in a central location and the antenna is located elsewhere on the board for best performance. This is also the case as some of you may recall with the iphone and the issues they had with the metal body and wifi/3g when you covered a particular part of the phone body with your fingers etc.
So in reply, they could well design a metal body for the camera and pipe via a cable to an antenna external to the metal shell for best reception purposes....and this does not mean it has to remain an internal antenna...