Possible, Yes. Probable, No. When the Instinct first came out all the reports even samsungs website stated that the instinct had FM radio, I was disappointed after I purchased it that it didn't.
Well to have FM on the phone there would have to be a chip added onto the board that was most likley left off due to rushing it to market. There could be an accessory like the ipod fm radio remote for the instinct but it would have to have software installed on the phone and I don't think there is a big enough market for any third party to invest in it. I don't think sprint will when they have their radio on it, Which also could be a reason they left it off.
oh, i meant is it just possible for someone to whip up an FM Radio app real quick and have it useable. guess thats a no.
hmmm, listening online to my local radio though? dot think it comes through in RSTP though.