Old multihull history - Phil Weld, sailing the Dick Newick designed Gulfstreamer was capsized by a rogue wave in - you guessed it, the Gulf stream. Lived in the updturned boat until rescued. Newick also created his replacement boat - named Rogue Wave...

It was sometime over the last year or so that a cruise liner was hit by a rogue wave off the east coast of the US - lots of broken windows in suites and some other damage if I remember right.