Latest NZ Navy News (not posted on website yet) contains article on Rafael Mini-Typhoon mount with .5 cal HMG & TopLite electro-optical sensor. Article states this is being purchased for ANZAC Frigates as part of a 'layered' defence against surface craft (esp. FAC) - with Phalanx block 1B (incl. surface mode) the next layer out. Result of 'experience in the Gulf' - plus folowing up on Aussie experience.
http://www.israeli-weapons.com/weapons/naval/typhoon/Typhoon.html
Apparently the RNZN is only just about to entre negotiations for purchase, but looks certain to me they'll be purchased. No mention of how many per vessel - anyone know how many per Aussie ANZAC? I understand there are 6 HMG stations on the RNZN ANZACs - s/be 1 mini-typhoon per station in my book.
There no suggestion it will be extended to other classes, but to my mind if a vessel has an HMG currently there's a perceived need. If there's a need then the weapon should be operated as effectively as possible. The mini-typhoon not only provides vastly more accuracy & therefore better self-defence, but it avoids exposing a gun crew to hostile fire (except when reloading ammo).