Sling Media released their SlingPlayer Mobile for PalmOS to open beta this morning. It is officially supported on the Palm Treo 700p, but I know it also works on the Treo 680.
How do I know this? I’ve been using it for the past month and a half in order to write this review for SlingCommunity.com. 
Download it from Sling here and sync it to your Treo, or download directly from the browser on your Treo here.
About MegaZone
MegaZone is the Editor of Gizmo Lovers and the chief contributor. He's been online since 1989 and active in several generations of 'social media' - mailing lists, USENet groups, web forums, and since 2003, blogging. MegaZone has a presence on several social platforms:
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