Palm Mansion mockupHP/Palm is apparently working on a touchscreen-only phone with a high-resolution screen, and it’s going by the codename “Mansion”, a tipster tells Palm fansite Pre Central.

The news doesn’t come as a huge surprise. While Palm spent a lot of time hyping up the Pre’s keyboard before its launch, there’s still room for a webOS device that only rocks a touchscreen. The many consumers choosing to pick up iPhones and touchscreen-only Android phones certainly prove that users today aren’t as skittish about virtual keyboards as they once were. And besides, many likely don’t even have any experience with a keyboard-equipped smartphone.

Palm also sorely needs a device with a larger screen than the Pre, which is stuck with a tiny (by today’s standards) 3.1-inch screen. WebOS is a gorgeous and touchscreen-friendly operating system — if Palm managed to bring out a 4-inch webOS device, it would certainly be a head turner.

The Mansion’s rumored high-resolution also points to a bigger screen. The Pre has a diminutive 480 pixel by 320 pixel resolution, whereas the tipster says the Mansion runs at 800 by 480 — putting it on par with large-screened Android devices like the Droid X and Nexus One. It’s also close to the iPhone 4’s “Retina Display”, which runs at 960 by 640.

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There’s not much else to this rumor yet, though it’s worth mentioning that the Palm Pre’s original codename was “Castle” — which seems to fit the Mansion naming motif. At this point, I’d be more surprised if HP/Palm wasn’t working on a touchscreen-only webOS device. We know that a webOS tablet is on the way, so it makes sense for the company to explore other touchscreen-only options. Plus it now gives HP/Palm a way to entice users who never cared for the Pre’s hardware keyboard.

Image via PreCentral

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