>Before you get too excited about the new Pocket Wizard iTTL >(Flex 1 and Flex 5) modules, I have them and they work >flawlessly with the SB-900's but do NOT work at all with the >SB-910's. A call to PW confirmed this and they hope to have a >firmware upgrade for the 910's in the near future.
I've had the PW's and my SB-910 for a few days. Before doing anything I downloaded the latest firmware into the MiniTT1 and the FlexTT5's. Following the instructions I powered it all up. It appears to me that it is all working very well using my SB-600 and my SB-910 as iTTL remotes. Changes on the camera seem to make changes on the SB-910. And my images are nicely exposed.
Maybe I have not pushed the capabilities of the system or perhaps I just don't understand what "should be happening". But, saying that they do not work at all looks like stretching it in the opposite direction from what I am observing. If I reposition either the SB-600 or the SB-910, they send a test flash and the unit seems to adjust themselves. That is more than just a triggering of manually adjusted remote flashes. I will test it over the next few days to see how it behaves. That should help convince myself one way or the other.