IMX is a good idea. Being that the FX1 is the consumer version and the Z1 is a "prosumer" product, not a broadcast product, several of us have speculated that Sony's next step will be a low-cost IMX system with HD resolution. There have also been rumors about leaks in that direction. You see, even though the physical form factor is so very different, IMX and HDV are both MPEG2-based and closely related. If Sony wanted to have 1080i HD IMX product on the market today, they could have it on shelves next morning, so to speak. All the R&D is done. But it is very unlikey that such a camera would cost less than US$10k.