To X10 or Not - HELP!

Yeah, I'm certainly very happy with its performance. Does seem a bit of a lottery which serial no/sensor version you get depending on location though. From what I can see even some earlier 22 serial ones come with 1.02 firmware which may mean older sensor too. Maybe you can ask a local camera shop if they know what their stock has? (If that indeed means anything or is still a little "pot luck"!)