Rostra tech wrote me back. A new cruise control kit for the 2009 Fit Base will be announced next week and become available in October. Not sure what the difference from the 2008 kits that have been out could be but I will definitely be one of the first to try it.

 

Awesome! There are still a lot of things I need to do to my Fit, but this is one of the most important. I was getting a little worried it might never be available