My question, which surprisingly hasn't come up, is:
What is the point of a radio controlled flash if you don't have built in triggers on your cameras?
If this is true, isn't Canon just throwing business to third parties? I suppose Canon could release it's own trigger system, but why do that when you've just released two flagship cameras?
I would have thought the 1DX and 5D3/X would have utilized a radio system, if Canon had planned to release a radio controlled flash. It's just stupidity on their part, if that's the case.
I realize that 5D3/X specs are speculation at this point, but there hasn't been the slightest rumor. Plus, the 1DX has had an official announcement, without mention. Is this something Canon could have left off the spec sheet and will enable with a firmware upgrade prior to launch, just to conceal the announcement of a radio flash unit?
Something about the above just doesn't sit right with me, but I guess we'll find out in 5-6 days...