Bing announced they are going to get faster, twice as fast to be exact.

Microsoft said:

Wired reports:

This is similar maybe to Caffeine in terms of speeding up the search results. Although, Caffeine was less about the hardware, I believe, and more about the internal infrastructure of the code, data and so forth.

When will this roll out? Unsure, but they are testing it.

Forum discussion at WebmasterWorld.