You can search Twitter by using the command twitter:{search term}. So if you wanted to search Twitter for FriendDeck you would issue the command twitter:FriendDeck
You can follow an individual users "Likes" by using the command likes:{username}. If you wanted to follow all the posts that I like you would use the command likes:kinlan
You can see all messages on frienddeck posted by a user's friends by using the command friends:{username}. You will be able to see all the posts that my friends with the following query friends:kinlan