My dissatisfaction with PC OEMs is something I have documented in the past. They offer a confusing array of products and tend to cut corners in the worst ways imaginable. The OEM response to Windows 8 has been to produce a wide range of machines sporting novel form factors to fit all sorts of niches, both real and imagined.

One niche that the OEMs haven't tried to fill, however, has been sub-10-inch tablets. That's not altogether surprising. Microsoft designed Windows 8 for screens of 10 inches or more, and initially the operating system's hardware requirements had a similar constraint.

That decision looked a little short-sighted after the success of tablets such as the Google Nexus 7 and the iPad mini. Accordingly, Microsoft changed the rules in March, opening the door to a range of smaller Windows tablets.

Specs at a glance: Acer Iconia W3 Screen 1280×800 at 8.1" (186 PPI) OS Windows 8 Small Screen Touch with Office 2013 Home & Student CPU 1.8GHz Intel Atom Z2760 RAM 2GB LPDDR2 GPU Intel Graphics Media Accelerator HDD 32GB or 64GB MMC Networking 2.4GHz 802.11b/g/n, Bluetooth 4.0 Ports 1 USB2, micro-HDMI, microSD Size 219.0 × 134.9 × 11.4 mm Weight 1.1 pounds (0.5 kg) Battery 6800 mAh, 2-cell Lithium Polymer Price Starting at $379, $429 as reviewed Other perks Front and rear cameras, volume rocker

The Acer Iconia W3 is the first—and currently the only—8-inch Windows tablet. That attribute alone makes it in some sense noteworthy. Sadly, it's about the only thing that does.

Spec-wise, this is another Intel Clover Trail tablet, and its internals are basically the same as the devices that launched last year (such as its bigger brother, the Acer Iconia W510). This means 1.8 GHz, dual core, four thread Intel Atom Z2760 CPU, 2 GB RAM, 64 GB flash storage (which with Acer's default partitioning leaves a little over 29 GB usable), front and rear cameras, Bluetooth 4.0, and 802.11b/g/n (no 5 GHz support). There's a micro-HDMI and micro-USB port for external connectivity (a separate cable converts the micro USB port into a full-size one), along with an SD card slot. The tablet has a speaker adequate for notification sounds but little more.

As a result, performance and battery life are similar to what we've seen before. The Iconia W3 comes equipped with full-blown Windows 8, unlike ARM tablets, so it can run any 32-bit Windows application—should you really want to. Clover Trail's GPU performance is such that games and other graphics-intensive programs won't run well, however.

Eight inches of horror

The new bits on this tablet are really the screen and the size.

Screens are important. We spend essentially all our time interacting with devices looking at screens. Cost-cutting on screens is unforgivable, as a bad screen will damage every single interaction you have with the device. This goes doubly so for tablets, where the screen works not only as an output device but also as the primary input device.

The Acer Iconia W3's screen is a standout—because it is worst-in-class. I hated every moment I used the Iconia W3, and I hated it because I hated the screen. Its color accuracy and viewing angles are both miserable (whites aren't white—they're weirdly colorful and speckled). The screen has a peculiar grainy appearance that makes it look permanently greasy. You can polish as much as you like; it will never go away. The whole effect is reminiscent in some ways of old resistive screens.

It's hard to overstate just how poor this screen is. At any reasonable tablet viewing distance, the color of the screen is uneven. The viewing angle is so narrow that at typical hand-held distances, the colors change across the width of the screen. At full arm's length the screen does finally look even, but the device is obviously unusable that way.

Acer has clearly skimped on the screen. I'm sure the panel in the W3 was quite cheap, and that may be somewhat reflected in the unit's retail price ($379 for a 32GB unit, $429 for this 64GB one—putting it at the same price as the 32GB iPad mini, which has a comparable amount of available disk space), but who cares? It doesn't matter how cheap something is if you don't want to use it at all.

This poor screen quality isn't a question of resolution, either. 1280×800 is not a tremendously high resolution, but text looks crisp enough. At 186 pixels per inch, 1280×800 feels more or less OK for this size of device.

The low resolution does, however, have one significant drawback: it disables Windows 8's side-by-side Metro multitasking, which requires a resolution of at least 1366×768. The W3's screen is 86 pixels too narrow, so the Metro environment is strictly one application at a time.

This is an unfortunate decision. The side-by-side multitasking is one of the Metro environment's most compelling features. Keeping Twitter or Messenger snapped to the side makes a lot of sense and works well. I've never used Windows 8 on a device that didn't support side-by-side Metro multitasking before, and I don't ever want to again.

Size-wise, the W3 may be small for a Windows tablet, but it's not exactly small. It's fat. The W3 is 11.4 mm thick. The iPad mini, in comparison, is 7.2 mm thick. The Iconia W3 is also heavy at 500 g; the iPad mini, in comparison, is 308 g. That makes the W3 more than 50 percent thicker and more than 50 percent heavier.

The thickness makes the lack of a full-sized USB port on the device more than a little confusing. There's certainly room for a full USB port, and a full port would be more convenient than the dongle. But for whatever reason, Acer didn't give us one.

The device itself feels solid enough, albeit plasticky. It doesn't exude quality, but it's a step or two up from the bargain basement.

Keyboard non-dock

The W3 also has a keyboard accessory. As is common for this kind of thing, the keyboard has no electrical connection to the tablet. It's a Bluetooth keyboard powered by a pair of AAA batteries. It has a groove along the top that can hold the tablet in both landscape and portrait orientations and a clip on the back that lets you use the keyboard as a kind of screen protector.

The keyboard has to be manually paired to the tablet. It's more or less full-size, with a reasonable key layout. It's a typical mediocre keyboard. The feel is a little on the squishy side, lacking the crispness of, for example Microsoft's Type Cover for its Surface tablets. It's better than any on-screen keyboard, and to that extent it does its job. But it's a long way from being an actually good keyboard.

The groove does hold the tablet up, and on a level surface the unit doesn't topple over, but it's not as satisfactory as some of the hinged keyboard/docks we've seen on other devices. Tilt the base while carrying it or using it on your lap and the tablet is liable to fall out.