Consumer 4K is on the way, it is now as inevitable as the first 1080p stickers were on your TVs and cameras of 5 years ago. In an interview with DPReview, Nikon’s Tetsuya Yamamoto says that the Nikon J1’s (Aptina produced) sensor is already capable of a 4K horizontal resolution in video mode (although he doesn’t reveal the vertical resolution which I suspect would be lower than 2K).