TW Powerboost
Ah, I have done some research to find out why the sudden speed increase on my TW broadband connection. It turns out TW just deployed "Powerboost" technology in the NYC market this summer. It's a tech that Comcast pioneered and that gives you 2x to 3x the bandwidth for the first few minutes of your download. I guess that's an improvement, but not as great as sustained of course. Probably a move to compete with Verizon's FIOS.

