Hell, our OS' just sorta opened the doors to MT anyways. No matter how many cores you had, itd still been limited on xp.
Weve been thru it, saw single to dual, and yes dual kicked butt, but quad is just smoother, as duals can get jumpy, but they dont stall, or at least not that often, like single cores did.
I say, make the apps stall, bring on MT, but of course they wont, cant make money on something that doesnt run on everything out there, at least within reason.
If this is a chicken or egg thing, either the egg will be rotten, or the chicken too old to lay before things change, because, now, apps makers have the option to do nothting, and cover their bases til, we, the consumer get enough "numbers" to make that change.
I say, kill all the bean counters