In the old world, Google used to crawl Twitter in order to pull out relevant tweets for search results. That didn’t work very well — try to crawl a velocity of 8,766 tweets per second, and you’ll find out why. If Google did try to crawl Twitter at the appropriate rate, Twitter might very well crumple up in a heap of server meltdown.
Instead, Google now has complete access to the firehose.
Are you eagerly eyeing Google’s search results, waiting for your tweets to show up? Keep waiting. It could take a while – as much as “a few months”