You mean those stupid plastic flaps with the gaskets that came unglued and prevented the flaps from even closing properly?
http://stellatech.com/pubs/uploads/54c8de18efd94.jpg
And after marketing it as an underwater camera, they later backpedaled and said "waterproofing was tested in a standby state under laboratory conditions, do not attempt to use the phone underwater"?
http://www.trustedreviews.com/news/sony-don-t-use-waterproof...
Waterproofing, maybe. Top notch waterproofing, absolutely not.