GabrielZ: My favorite types of photography are landscape and macro. So the increased DOF of the smaller sensor, combined with compact size, low weight, ability to change lenses and relatively affordable price, would suit me quite well. But I want to wait for a full review to see how image quality measures up. And hope that down the line Nikon releases a real macro lens for this system.
@Tord: if I may ask, which Canon close-up lens do you mean? (I'm curious because I'd like to try it myself.)
You could use the Nikkor 40mm DX macro together with the FT1 adapter.