I reviewed the IMAX version last December and upon second viewing, the overall score remains the same, but I should add that the pace really bogs down after the Burj Dubai tower/sandstorm sequence with a lot of talking and not-so-exciting capering trying to get access codes from the guy from Slumdog Millionaire. I got sleepy and the girlfriend fell asleep after having been alert for the first half.
Score: 7/10. Rent the Blu-ray.
Speaking of which, in another nasty example of retailer exclusives, only Beast Buy has a Blu-ray package with an extras disc which presumably would include the details of how they did the stunts like in this clip:
Guess I'll be waiting for a sale.