For the second time this month, an app developer has caught an unreleased webOS 2.0 device with a 640x960 display using their wares. There's no telling whether it's a new webOS phone or something else entirely.
Apple's darling Retina Display is, of course, not a resolution but a pixel density, so the same dazzling graphics won't appear if this resolution is applied to a larger display (as could be the case with HP's rumoured tablet). But the possibility of another mobile device to rival the iPhone 4's popping screen is an exciting one. [Boy Genius Report]