I have had my Moon Silver K-S1 for about four months now, and I have loved the small form factor and superb image quality.
However - over the Easter weekend the mechanism which holds the SD card clicked into place stopped working. With the battery/card door closed it still works perfectly, but if the door were to inadvertently open the card would spring out onto the floor. As I bought it from B&H I suspect CR Kennedy may not honour the warrantee, but I will discuss it with them next week.
I just wondered whether this is a known issue, either with the K-S1 or other Pentax models, or whether I am just special