In TweetSharp 1.0 there was FluentTwitter, TweetSharp 2.0 doesn\'t seem to have this anywhere, it doesn\'t even seem to be deprecated but rather just deleted altogether, can any
To answer your primary question: TweetSharp dropped its fluent style API in the release of 2.0. Furthermore, TweetSharp is no longer maintained by its authors, this is why finding information about it, outside of its github repository, is problematic.
In the past I've released a very early beta prototype of twitterizer's streaming binary as a separate download (in the 'addons' release). The most recent version, however, contains the streaming binary that is fully working and stable (at least for the user stream).