All the manufacturers want you to buy their skis AND their bindings and so they put pre-drilled plates on the skiswhich only take their bindings, like some Dynastars and Atomics. Lately though they redesigned the bindings so that they will only fit onto their brand of skis, so when you wear out or break your skis you have to buy the same brand of skis again or throw away a perfectly good set of bindings. Cunning.
The integrated systems don't do anything, in terms of letting the ski flex, that current plates and bindings don't already do. The only improvement in performance is that of the marketing departments in sucking you in to spending more money on their products. I totally aree with TomB on that.
Dynastar had a free flex plate on their Autodrive skis which would take any brand of binding but lately they have been pre-drilling them to only take Look/Rossi bindings.It was a pity as they had been taking the moral high ground on the issue and letting us decide what bindings we wanted, but it isn't a big issue as they are the best bindings anyway.
I just wonder how much longer this dumb fad of integrated systems like pilot and motion will continue.