I too am looking for the cover and can only find it on the site mentioned above. I contacted the site above and explained my situation and they were basically no help whatsoever. I called Samsung and they said they aren't selling them yet. Please let us know if you happen to find one.
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I found a repair shop that will sell the cover. It's blueridgewireless .com. They said they'd have to order it and it would take a couple weeks to get to them. It's $35 plus shipping. I'm ordering one today and will let you know how it goes.
Anyone else find more of these or know the ebay seller that had them as I am too looking for a replacement after scratching the battery door on my focus s.
If you contact blueridgewireless.com they can sell you one. I just ordered mine for 35 with 5 shipping and should have it within a couple weeks. Ebay was only there for a few hours and then gone again.