an old one actually.
the DW6000 will allow the user to have lap count and lap time display while in chronograph mode.
and you can enter target lap time and target speed/distance(?) and then display the difference between your current and target (time and speed/distance) with a press of a button
and when you press the "Lap" button, the watch will beep serveral times if its the best lap so far.
i don't think 1/1000 sec chronograph is of any importance, but it's definitely looks cool :-D
it won't replace my Timex Ironman 100-lap (with different countdown timer modes) but at least now i have a G-Shock that i can run with [when i am running on the track]
i am still trying to confirm the above by playing around with the watch and with my limited japanese reading capability of the japanese manual :-D