Hence why I said that only the 10 meg capable exchanges will first see this. The older exchanges won't be able to handle the upgrade since you'll be increasing their work load and most are already saturated as they stand. Not 100% certain about this, but someone somewhere pointed out that this is only taking place in selected areas but can't quite find the article/forum post. Seriously have to bookmark this kind of s**t for myself in future >.<
But yeah, it only makes sense if they are aiming these upgrades at MSAN or low congestion exchanges first and then as older exchanges are upgraded they could still carry implementing the upgrades all across the board. I'll try and dig out some more info about the exact nature of the upgrades though I see this taking the same route as the 4 meg to 10 meg upgrades. Only a small group of people get their full promise and the rest of us sit syncing at barely 4 megs with heavy noise on our lines .-.