I saw this coming from a mile away and honestly can't understand anyone who thinks this compares to the Think Different commercial at all. I whole heartedly believe that they are exactly the opposite ad campaigns.
Go watch Think Different:
http://www.youtube.com/watch?v=nmwXdGm89Tk
Notice it doesn't end with "At Apple, we think different!" Notice also that the ad isn't even primarily about Apple. The ad is *aspirational*. Its about what Apple wants to be, what Apple respects. That's why people like that ad. It's inherently humble. You could show the Think Different ad to any group of people, regardless of who they work for, and it makes them want to accomplish great things. That's what elevates that ad campaign to greatness -- it hits everyone.
Now go Watch "Designed by Apple in California". That ad is *not* aspirational. Its a minute long self congratulatory pat themselves on the back. Instead of uniting people under the awe of doing great work, they clearly *draw a line* between themselves and everyone else. That ad can only inspire Apple employees, its so literal and focused.
The worst part is they took what used to be a very classy and understated line -- "Designed by Apple in California", and turned it into a cheesy corporate motto. That line worked well before because, inscribed on the back of a product, it gave a very humble sense of "we're proud of what we made and where we're from". Now its a sad caricature of itself, blasted on TV and put at the forefront. An artist's signature only works when it doesn't dominate the painting. If you still don't get it -- imagine making a commercial about YOURSELF, then blasting your signature at the end (which you usually reserve for signing receipts) and exclaiming "THIS IS MY SIGNATURE, IT MEANS EVERYTHING" . Something simple immediately becomes overly proud and pompous.