[rjsw]

The point of the FM transmitter was to be able to use the N900 with a car head unit to play music from the phone.

[freedomben]

Oh wow, that's a badass feature. I'm legit impressed (this is not sarcasm)

[rjsw]

There are FM dongles that plug into a headphone socket, but building it into the phone from the start says to me that Nokia really knew how people would want to use it.