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I didn't either. Maybe I still don't.

I think it takes a search and is smart enough to give you comparisons between results. Look at their examples to get a feel for how it works.

I could be wrong, someone let me know if I'm completely off base.

Using heuristics, it attempts to form structure from unstructured data. It's a pretty good first attempt.

I did check out the example searches. First one I clicked on - Hawaiian islands. http://www.google.com/squared/search?q=Hawaiian%20islands...

What does "color" refer to here? The island's flower? What colour is melemele?

I should point out, I get what it does technically, but I'm just struggling to think of a repeatable user scenario where this would be useful...

I also noticed a couple of weird things:

1) They're not URL encoding their example searches. Tsk.

2) Searching for "google squared" on regular Google brings up Techcrunch, and the Google Squared site is halfway down the list.

Try example searches for "roller coaster" and "US presidents" . I think those are better examples to try and get a feel for what's going on.