It would be nice, but I don't think they're going to force companies to do such a thing.

I hope oblivion gets some!

Older games will not be forced to update, they will only be updated if the studio wants to update the games.

This. Some examples are Warhawk, Burnout Paradise and GTA IV.

On a side note, can't wait until rearmed get throphies. I don't care if they aren't retroactive, i'd do it all again.

I'm sitting on my chair waiting for MGS4 get thropies,and my patience is dying (>_>)'

Yeah, I would love for Konami to put trophies in MGS4 (so many opportunities), as well as NIS to get some trophies into Disgaea 3 (again, so many potential choices). There are plenty of older games that could have quite the expansive list of trophies, but it's up to the devs to decide if they want to implement them or not (I've heard it isn't too difficulty to do so).

What twesterm said

Anyway, it is quite annoying that devs continue to do this, in most cases I feel slightly obliged to play them, and I can't really be bothered

I think adding trophies to older games is a great idea, because those games are cheap now and the trophy whores will surely want to buy it. Not many devs are making this move, though.

It's a lot of work to go back implement, add, and test those trophies.  It *might* (but a longshot) be worth it for multiplatform games but it's a waste of time for exclusive games.

i would love for the 3rd party studios to add trophy support to older games, like oblivion,resistance,rainbow six:vegas,assassins creed,ratchet and clank:future,disgaea 3 among the few i would want now or very soon.