The Eternity, HTC's next Windows Phone 7 device, will have a 4.7-inch screen [Photo]

Just when you thought that smartphone screens could not get any bigger, they do. Leaked images of HTC's next Windows Phone 7 phone show a device with a 4.7-inch screen. But will its battery be up to snuff?

Looks like the Infuse may soon get its screen size crown snatched. HTC Inside somehow got a hold of some images of what appears to be HTC's next Windows 7 Phone megaphone -- the appropriately-named Eternity.

The phone's biggest pull so far is clearly its 4.7-inch screen, which tops even the 4.5-inch one on the Infuse. If the rumors are true, the Eternity will run on a 1.5GHz processor and come equipped with a 8-megapixel camera. On the device's front is a 1.3-inch camera, the existence of which should give you something of an idea of when the Eternity will hit stores. Considering that support for front-facing cameras will come with Mango, it is safe to assume that the Eternity will arrive sometime this fall.

Another safe assumption is this: The Eternity's battery life won't be all that great. With a 4.7-inch screen and a 1650mAh battery, the Eternity's title certainly won't apply to how long the thing lives on a single charge. Then again, that shouldn't come as much of a surprise anymore.

[HTC Inside, PhoneArena]