I skimmed through that thread - and I believe there was mention of a phase II or something.....I'll have to go back and reread it. But you're right Turbo - the Phase I still needs the key.
yeah, theres talk of phase 3 I think it was, which there looking to be more of a stand alone system made to be installed in any car, more like a universal model. there problem now is finding an afordable transmit recieve setup & they haven't come up with a solution there yet. the real problem is for it to be sophisticated & secure & reliable takes technology that's not necissarily cheap... the infiniti ikey setup is very sophisicated, 2 way recieve/transmit confirmation, many possible code combinations, etc.
still, no matter what they come up with for tx/rx, the biggest problem will still be the locking & unlocking of the wheel, if that's not electrically controlled then a push button start will not be practical or complete. the locking of the wheel is the single biggest challenge really of a real keyless push button ignition.
personally, I like the ikey setup & don't feel that a push button will be so much of an improvement. the ikey has several advantages over a true push button ign. the push button igns are a bit of a comprimise, even factory setups... they look real cool I guess, but in the end the real convinience is not having to touch your keys, which the ikey does well, I don't see a huge advantage of pressing a button as opposed to turning a knob.... however if it really is something that you'd want to do, the ign lock is the real challenge.
having to push a button after turning a key is like a step backwards... I mean yeah, theres a push button, but big deal, it's now an extra step... the only way a push button ign is worth considering to me is if it's JUST a button push for everything... then I'd call it an upgrade or enhancement, othewise it's just a novelty & pretty much "fake".. I mean anyone can wire a button to crank the starter... that's NOT a push button ign really though...