Not in the newer cars. You can get bluetooth without nav on the ES350 for instance...
It's based upon the Toyota Euro Avensis (not the Prius). Autoblog has a nice review of it here: http://www.autoblog.com/2009/05/26/first-d...y-on-the-inside
Don't read the comments though. Autoblog comment section is filled with all the failure of humanity.