Yes, the response was regarding AF-II.
By 2nd flash you probably mean rear curtain sync or perhaps red eye reduction? Both work, but rear sync has to be enabled on the flash*. Setting it on the camera does nothing - it used to work just fine on my K-x. Rear curtain sync is generally speaking useful. I have enabled this as my default setting.
If by strobe mode you mean whether you can trigger the flash using another then yes, you can do that.
The only true feature that to my knowledge is missing, is HSS. HSS is useful when you need greater than 1/180th shutterspeeds such as when shooting a portrait during sunset and you want both the person and the sunset to be proper exposed.
*and it's limited to 1/90. Not 1/180 as I otherwise get as my max shutterspeed.
Last edited by Zafar Iqbal; 04-10-2013 at 04:56 PM.