Once had a phone with an FM radio.
Utterly useless. It only worked with a wired earphone that was both the source of sound and the antenna. The only use for a radio like this is for talk radio and ballgames, yet those are all on AM.
While the idea of forcing FM chips into cell phones is ridiculous, you’re wrong about it being useless. My current (and previous) phone has an FM chip which I use everyday at work to listen to a DC sports talk station (106.7). If I get bored listening to the radio, I use it as an mp3 player. I can also use the SlingPlayer on it to watch TV.
While you may not use it, lots of people like me consider it a useful feature.