Although I’d certainly trade them for a single camera with twice the resolution, this A5502K from Kyocera is the first phone I can recall seeing with two cameras, one in the front like a normal, selfless, god-fearing camera, and another next to the LCD for taking vain, indulgent pictures of yourself. The other functions of the phone don’t look half-bad either, although I wouldn’t expect to see it in the US, you know, ever.
Update: So apparently some of NEC’s and Sony Ericsson’s phones have two sensors, too. Good for them.