the X2 intrigues me, and I'm impressed with the images I've seen from it, but at the price I'll pass. You can get an X100 for about $700 these days and if the lens is not quite as good as the X2 (I've heard), it's still awfully good.
For now, I plan on trying the DP2 Merrill, the image quality of which at least matches, and may well beat the X2. Besides, I want the Foveon experience.