As just noted, they could indeed manage to make this not work without that specific display. The PS3 might be told to refuse to put out a 2-player fullscreen signal unless it gets a custom response back from the display over the HDMI port saying that it supports the feature. We won't know that until we can download a demo that supports the feature and try to use it without the set and see what happens. If I see mention of one I'll give it a yank.
If there's no crippling at that level, I'm sure the IR protocol for those new sony glasses won't be hard to hack/transcode, for someone who owns the set + electronics equipment, but even if you made an emitter to drive them, buying them separate from the set might be difficult at first, and if they don't have front polarizers like some other Sony offerings, they won't work with another brand of set anyway.
The problem then becomes actually finding some generic IR or RF glasses that support turning both lenses black at the same time, and also support setting the phase on ONE PAIR of the glasses so the same IR signal can drive two glasses 180 degrees apart.
It's hard enough to get them with the pseudo-stereo button -- I haven't seen mention of any that have a one-eye (2D viewing) button. Which is odd because you'd think they'd want to let your guests that don't like 3D watch with you.
Absolutely none are known to me that sport a phase knob (it's usually on the emitter and tunes all glasses at the same time.) Two explicitly paired BitCauldron-based setups might do it, but don't do the one-eye AFAIK
and by then you are in for a couple hundred dollars at least. The X104s might do the trick, if they ever actually make it to a store... nobody knows what their full feature set will be yet.
Finally to add to the pile of problems, 240HZ LCD based 3D displays use black frame insertion, and are really meant to be used with a rather high duty cycle (the lenses are black much more than 50% of the time.) They are not very well supported by generic glasses, since they are but a tiny sliver of the 3D market compared to plasma, DLP and LED.
So to summarize, it's possible it might happen someday, but I wouldn't want to be stuck waiting for it.
(PS and off-topic, for people who actually enjoy hacking on AV stuff and have some assembly code experience, over on the JP-1 remotes forums I posted some pointers for getting a JP-1 remote to transcode IR 3D signals from one protocol to another, and can give more if anyone needs to do so for a project. Right now I'm using such a hacked remote to bide my time with some cheapo glasses while this shutter mess sorts itself out.)