WHOOPS-- I spoke too soon.
I don't seem to have bluetooth. It doesn't show up in System Profiler ("no device information'), and does not show up in system preferences.
Yes, I have it enabled in my bios.
Any thoughts? Kind of makes my bluetooth mouse uh, a brick.... :-(
EDIT: OK, I fixed this. But whoa. If you find yourself in this situation, you need to boot some OTHER operating system, and run a dell utility to turn bluetooth on or off. Then go back to OSX. I solved it by loading a KNOPPIX cd, and installing and running "Dell aircraft manager".
Seems the bluetooth "state" can ONLY be enabled or disabled by a Dell app. Ewwwwwwww.