i think the new dura ace cranks look pretty cool as well. i don't think the two piece design is very smart, however....and i don't think splined BBs are smart either. i'd rather have 4 big corners holding my cranks in place than 8 tiny little splines. but in the end i guess it's the same amount of metal...

profile (the BMX brand) uses a 48 spline system but also use chromoly steel for their crank arms. most of the top pros use these and they take A LOT of abuse. the other top crank in BMX land is the primo powerbite, which uses aluminum arms and an oversized square steel spindle. the crankarms have pinchbolts on them. if these designs can take the abuse of BMX, then i guess the Dura Ace design can't be all bad. i just worry about what happens when the drive side gets loose on the pressed-fit spindle...not gonna be pretty.