iFixIt has already obtained an iPad mini and taken it apart.
As you’d expect, it’s not very user-repairable. Not many Apple products are.
Here are a few of the shots of the iPad mini insides:
Here is the A5 chip in the iPad mini. According to some reports, the mini runs about as fast as the iPad 3, (The iPad 3 uses a variation called the A5X. The extra power seems to go into pushing that Retina Display) so it’s definitely no pushover.