Did Another Nokia Windows Phone Just Leak?

We know about the impending SeaRay, set to debut next week—but has a new Finnish challenger appeared? PocketNow says this photo shows the Nokia "Sabre." So what's the Sabre?

The blurry handset, according to PocketNow's sources, is running Mango on a 1.4 GHz processor, 3.5-inch WVGA screen, and 1 GB of RAM. What's that black corner up there? I have no idea. A carrying loop? Some cosmetic touch? I'm not sure which is worse. I'm hoping it's just part of the PROPERTY OF NOKIA NOT FOR SALE sticker. But we'll see soon enough! [PocketNow via Engadget]