We're just one day away from HTC's MWC announcement, but it appears an online retailer may have let the cat out of the bag. Italian site Marco Polo Shop currently has two listings for the HTC Endeavor and the HTC Ville, complete with specs, price, and press images. If the listings are indeed accurate, we can expect the Endeavor to feature Ice Cream Sandwich, a quad-core 1GHz processor, a 4.7-inch 1280 x 720 display, quad-band radio, 32GB of storage (with a microSD slot for more), and an 8-megapixel backside-illuminated camera. The Ville, on the other hand, is shown with similar specs, but with a dual-core 1GHz processor, a 4.7-inch display with a resolution of 540 x 960, and 16GB of storage instead — though we have to say that resolution seems awfully low for a screen of that size. The Endeavor is listed at a price of €699.90, with the Ville coming in at €599.90.

It's important to keep in mind that these details are by no means official — and there's also the lingering question of the names of the phones. We'd heard that the Endeavor and the Ville would be shipping under the names One X and One S, respectively, neither of which are reflected here. The picture should become clear tomorrow at Mobile World Congress, and we'll be there to bring you all the details.

Thanks, Antonio!

Update: Well that didn't take long. Not that it necessarily confirms anything, but the product pages for the Endeavor and Ville have now been pulled from the Marco Polo Store.