[wp-hackers] post format types

[Philip M. Hofer (Frumph)]

I just found and read the codex on Post_Formats

http://codex.wordpress.org/Post_Formats

The issue i'm having is that it's saying that *those* post format types are the only ones that are available to be used.

I was under the impression that we could create our own post format types that have the post look that we want to have, not limited to these options. 

Is this true?