If you have Ubuntu installed on the N900, does it have a phone program that will use the phone network to make calls? (so, not internet phone, or skype, or whatever.)

I don't yet have an N900, but I run Ubuntu on my laptop and it'd be interesting to see if one could get a regular laptop making normal phone calls with some kind of USB simcard holder/phone transceiver and some software.

Of course I'd rather have an N900. hah.