A recently granted design patent may have revealed one of the two handsets we expect to see from Nokia and Microsoft at their upcoming Windows Phone 8 event. Filed with the US Patent Office on August 21st, the drawings show a slate device that resembles the Nokia Lumia 610 and is somewhat consistent with a prototype bezel that surfaced earlier this month. Illustrations of what appears to be Nokia's "Lumia Phi" showed up last week, making this handset a possible candidate for the mid-range "Lumia Arrow" or even the Lumia 719. Either way, we'll know exactly what both companies have up their sleeves next week in New York City.