Bluetooth is a pain-in-the-u-know-where.
Bluetooth doesn't have the kind of bandwidth you'll need. It's made for sending documents to the printer, or transferring files from a PDA to a laptop and vice-versa.
It eats batteries like crazy. It's a pain to keep sync'd up. Bluetooth drops for no reason, and takes some coaxing to get to re-sync. You'll quickly come to hate Bluetooth.
Bluetooth has limited range. It's 30 feet and under, but the performance can plummet beyond 10 or 15 feet.
I have blue tooth stuff, and knowing what I know now, I'd rather have donated my money and time to something far more worthwhile... like standing in line at the DMV, getting a root canal, giving money to the IRS, or visiting the proctologist.
Blue tooth might be perfect if you live on a ranch in Montana, and have nothing that can interfere and you don't need to it to work all the time, all day, every day.
I'd rather have WiFi. And specifically, I'd rather have a separate WiFi device that can attach to the USB2 port on the camera with its' own battery and antenna.
And frankly, wireless connections are pretty low on my list of improvements for Canon. I'd MUCH rather have more frames-per-second, a full frame sensor, more megapixels, better white balance, and less noise.
Now, wifi would really make sense on a sports camera. Like the 1Dmk2-n.
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Historically, the claim of consensus has been the first refuge of scoundrels; it is a way to avoid debate by claiming that the matter is already settled.