Beta for the Curve and Pearl works on the Storm, but half screen on the Storm. In fact an upgrade of SlingPlayer Mobile became available today and its performance has improved greatly though still not perfect. Half screen is better than nothing. I too hope a Storm version comes out soon. We want the love from Sling Media
You have to look on the commnutiy forums, I don't remember the link, but it's on the slingmedia forums. Also the Iphone version was submitted to App Store so hopefully the Storm will be next to get support.