With rumours that Microsoft will be unveiling two small-screen Windows 8 tablet devices at its Build Developer Conference in June fresh in the memory, one diminutive slate has already broken cover.

The Acer Iconia W3, an 8.1-inch Windows 8 tablet, appeared on Amazon.com for a short while. But long enough for the more eagle-eyed of consumers and news to have time to spot.

Analysts and industry insiders have been saying that Windows 8 is capable of running on smaller devices, and the Iconia W3-810-1600, as it has been listed, is proof positive. The minimum allowable screen resolution for the operating system has recently been lowered by Microsoft to 1024 x 768, as have other minimum specification requirements, so it allows manufacturers to come up with lower-end or smaller devices running on that platform.

As the listing on Amazon was pulled, few other details are available. However, PC World claims that the W3 runs on an Intel dual-core Atom processor, has a 1280 x 800 resolution display, and it was priced at $379.99 (£587)for the 32GB model.

A release date wasn't published.