Sonystore US now marked the 300mm lens as “No Longer Available”. There are still two left at Amazon (Click here) but the replacement of the lens should be announced within the next few weeks…maybe along two other zooms the 70-200mm and 70-400mm lens.
P.S.: The RX1oo has already 71(!) user reviews on Amazon and only four of them negative (click here to read them all).