iFixit published an iPhone 5 Teardown

Behold, the sixth generation of iPhone! We shall call it…iPhone 5! Buckle down for the iPhone 5 teardown: the biggest thing to happen to teardowns since teardowns.

Tools

Flathead 3/32" or 2.5 mm Screwdriver
Metal Tweezers Buy it
Phillips #00 Screwdriver Buy it

Tools (continued)

Small suction cup Buy it
Spudger Buy it
iPhone 4 5-Point Pentalobe Screwdriver

  iPhone 5 Teardown