I talked to HTC support, and as it turns out they haven't released the 1.6 update to Rogers yet at all.
TMobile got this update, but that was only on their G1 and Touch phones, nothing manufactured by HTC.
HTC announced that they are not releasing the 1.6 update for the Hero in the UK. Instead, they are waiting to release 2.0.
I wonder if we will get the same thing here in Canada? I may just go and try manually updating to 1.6 because apparently you don't need to Root your phone for that.
This is an interesting note, on the HTC developer site there is a 1.6 update available. This is for developer phones only, so I wouldn't try on your regular phone; HTC - Developer Center
At least it lets us know that they are at least considering it?