ChunkIt! ChuckIt?

I don't get it. Christopher Bell praises a new beta program, ChunkIt!, which shows previews of websites before one clicks on them. I admit to a love/hate relationship with Google, but doesn't it do that, anyway? I know there aren't any pretty pictures, but the one or two sentences are usually enough to tell me if I'm going to arrive at aaupnet.org or aaup.org.

What he doesn't mention, but may be implied by his writing for School Library Journal, is that this could benefit those with problems reading, be they 5-year-olds or impatient 36-year-olds.