A
If it follows the same path as other HTC devices the GSM variant probabaly will and the CDMA variant will not. That might be why different sites report different things.
I dont use it on my M9 TMO branded unit but I am glad i have the option to use it.
The unlocked A9 I got yesterday DOES have a FM Radio.
The carrier-unlocked A9 I received from Russell Holly does have FM radio, but it only works with wired headphones. Which as a Bluetooth user is a shame.