-- Older Spock seemed surprised to have met Scotty on the ice planet. Wonder why he didn't expect to see him? Is Spock confused by this timeline?
-- Nero must've brought 24th/25th century Romulan technology back with him and is going back and forth through time (for example from the day of Kirk's birth to the attack on Vulcan years later).
-- Kirk, McCoy, and Uhura may know more than they're leading on. Which is why Kirk stops to try to explain things to Uhura on his way to the bridge. The three of them have already experienced something. Which is also why McCoy gets Kirk on the Enterprise, to stick together.
-- Unless the report has the location wrong, what the hell are Uhura, Sulu, a bunch of other cadets, and Pike doing in a bar in Iowa? Maybe Starfleet has a campus at my alma mater, Iowa State.
Perhaps the most telling line that something is out of skew:
-- Pike says the Federation is, "An important peace-keeping armada." WTF. It keeps the peace, but that's an interesting choice of words. An armada is a fleet of war vessels. Maybe things aren't all hunky-dorey "where no man has gone before," any more. Fits in with McCoy's line in the trailer about space being nothing but, "phasers, aliens, and killing," or something like that. I found that a strange line at the time. It also fits in with how "Yesterday's Enterprise" was an influence on this story. Nero must've really screwed things up already, and is trying to do more.
-- Could be why Uhura knows of Cardassian sunrises, too. We really don't know what kind of world this is.