Obviously a lot to like, but disappointed that the sensor is 44 x 33 and the price is $35k. Just let me check the calendar … yup, it really is 2014, for a moment I thought I was back in 2007. $35k for sensor little larger than that available in a 35mm DSLR is hard to swallow. Despite P1's launch video, if I was shooting mountain biking, the clunky DF + IQ250 wouldn't be my first choice.
Also, I wonder about the economics of the Sony brand sensor. For the numbers to work it looks like Sony had to design a sensor that it could sell to multiple manufacturers (hence the 44 x 33 size). Since I can't see Pentax, Leica and Hasselblad ever needing a larger size chip, I do wonder if Phase have enough muscle (and the market is large enough) for them to induce Sony to fabricate a 37x49 or 40x54 chip. If not, that's a shame.