The PinStack forums got some leaked retail partner docs from T-Mobile today confirming the T-Mobile BB Curve 8320, and also showing that it has HotSpot @ Home Service. HS@H lets you use one cellphone to make calls on both the cell network and your home’s Wi-Fi, handing off “seamlessly” between the two. Adding the Curve to this network seems brilliant, allowing office monkeys to both talk and receive emails over fast Wi-Fi. [Pinstack]