The divide between online radio and terrestrial radio just got a tiny bit smaller. Web broadcaster Pandora has announced Pandora on the Go, a mobile client that works with a handful of Sprint cellphones.

While it's not exactly a $10 portable radio, you've probably got your cellphone in your pocket most of the time when you go out anyway. Go for a walk, and listen to Pandora on your Bluetooth headset. Pick up an FM adapter and you can listen in your car, while enjoying the irony of using your car radio's FM tuner to listen to internet radio streaming from your phone.

There's a 30 day free trial for Sprint Power vision customers. After the trial period, you'll have to shell out $2.99 a month.