rather lengthy beta (or at least it seemed lengthy to those impatiently waiting for it), Sling has finalized its SlingPlayer Mobile for Palm OS for retail. With Windows Mobile 5, Windows Mobile 6, and Palm clients now all widely available, carriers may want to get cracking at shoring up those HSDPA and EV-DO towers, because we have every intention of watching this football dude again and again. And again. Grab SlingPlayer Mobile for Palm OS -- officially supported on the 700p and 755p thanks to their 3G radios, though other models should work -- now for a penny shy of $30. Now if we could only get our hands on that elusive S60 client, we'd be all set.