1) Starting the film with a time traveller changing history is massively clever, because now no-one can complain about future films messing with the time line.
2) That still doesn't mean you can get away with having people order Cardassian cocktails in a bar, but even I recognise how pointless a nit-pick that is.
3) I'm also somewhat displeased that the only remaining stories that actually "happened" belong to Enterprise (better than Voyager, admittedly), and everything else is gone. I can't entirely articulate why I'm pissed that a bunch of fictional events now aren't recognised within the same fictional world, but Dr L tells me my reaction is consistent with literary theory, so I guess I'm OK with it.
4) Abrams continues to indulge in his twin obsessions with father issues and big red shiny balls, and has now apparently added "falling off of things" into the mix.
5) The new cast works pretty well in general, though Pegg is only required to play Scott as a comic character, so I remain unconvinced he's going to work over the long term. Assuming that's an issue, of course.
6) The future is now undergoing a retro revival, which includes swanky cars, Nokia sound systems, the Beastie Boys, and padded bras.
7) If I had a tiny man-bat to keep me company for the cost of one bean a day, I would renounce Lord Mothington completely.
Update: C has e-mailed me to point out there was at least one Cardassian exiled on Vulcan before Kirk meets Uhura in the bar. He quotes Memory Alpha:
Iloja of Prim was a Cardassian serialist poet who lived during the First Republic. Jadzia Dax regarded Iloja of Prim as her favorite Cardassian author. One of her symbiont's previous hosts, Tobin Dax, met Iloja when he was in exile on Vulcan. He noted that Iloja had "quite a temper". (DS9: "Destiny")
Iloja of Prim's exact time period has not been established. He had to be alive sometime before 2245 by which time Emony Dax carried the Dax symbiont. As both were on Vulcan during this time period this indicates that both Trilland Cardassians were known to the Federation before 2245.
Thus Cardassians were in fact known to the Federation on an individual level; one assumes that official first contact with the Union came much later, and led to the war described in "The Enemy".
Update II: Apparently the links in the above quote didn't work ( I copied straight from C's email), so I've removed them.