Apparently two of my tweets were indexed by Google, you can view the tweets here and here. So has Google already begun to index twitter tweets? Many might argue that Google already indexes twitter tweets, however those tweets are usually available when you run a site search for twitter, the above search results are appearing in Google web search results.
Though this may not be the final integration, looks like Google had already begun working on integrating twitter into web search results, and the deal signing was just a formality. We will keep you updated whenever we come across more news on this topic.