It’s not an Alpha nor a NEX camera but many SAR readers do own that little germ. And if you are a diver than you may be interest to know that Ikelite announced a new RX100 housing. You can get more news about it at Divephotoguide. And the big and much more expensive brother, the Sony Cyber-shot RX1 got a hands-on at Trustedreviews.
RX100 links roundup:
RX100 price search links: Amazon, B&H, Adorama, eBay.
Cases: Official Sony LCJ-RXA case, Gariz case, more leather case.
Batteries: NP-BX1 Battery.
Special stuff: Multi-Coated LENS ARMOR UV. Magfilter at Amazon (Click here). RX100 filter adapter on eBay (Click here)