I have this lens on order myself and intend to do a full review as soon as I get it. Unfortunately there are so far no signs of it coming to Canada. In fact a Canon rep even said he’s ‘not expecting it this month’ which is somewhat worrying as B&H is expecting to begin shipping theirs next week. I have to buy mine in Canada to take advantage of my CPS discount otherwise I would have just gone with B&H. video via CanonRumors
I have been using this lens for a few weeks now and I have published some of my thoughts here – not very technical but will my hands on experiences shooting an entire documentary wedding with it are: http://www.markcareyphotography.com/2012/jo-and-karim-canon-ef-24-70mm-f2-8-ii-usm-l-review/