Karl over at Brokeit has dug up some awfully official looking material regarding the upcoming BlackBerry 8820′s versus the BlackBerry 8100, BlackBerry 8800 and BlackBerry 8700. There’s not much in the way of new information, but gives the broad strokes of the 8320′s features. Karl also confirms that T-Mobile’s Hotspot @Home service should work dandy with the 8820′s WiFi, translating to the voice handoff service folks have been wondering about. As for OS 4.2.2, you’ll be getting the expected spell-checker alongside some home screen folder management, new camera effects (such as low-light compensation, sepia, black and white), and two phone updates. For one, address book entries will now pop up when receiving a call, and RIM’s introducing an Alternate Line Service, which lets you put more than one phone number on your SIM. Pretty awesome for those FMC junkies out there.