Without even examining the product, several things come to mind: (1) TCP hacks or tweaks to be more aggressive. Note that this might harm performance on busy l

Without even examining the product, several things come to mind: (1) TCP hacks or tweaks to be more aggressive. Note that this might harm performance on busy links even if it helps on calm ones... lots of trade-offs here. TCP bundling is a form of TCP hack. (2) Scatter/gather (BitTorrent-like) chunk or bandwidth sharing using centrally managed p2p. Edit: looks like it's TCP bundling.