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The Tap 20 is undeniably cool, but some of the details need to be fleshed out. Still, at about $880, it's not all that expensive, particularly if you consider that it's both a small all-in-one and a really big tablet.

The Sony VAIO Tap 20 doesn't deliver the performance we'd expect for a $1,000 PC. The real value of the Tap 20, however, lies in its 10-point touch screen, integrated battery and family-friendly applications. This device really shows off Windows 8's true potential.

A compelling experiment in tablet-desktop hybridization, the Sony Vaio Tap 20 is a great fit for home tech enthusiasts willing to try something new.

Despite some of the drawbacks, Sony has done a nice job of creating a fun but functional computer for families to enjoy.

The VAIO Tap 20 is an innovative all-in-one desktop with extra portability, but there are better-featured and more powerful desktops for just a little more money.

In terms of performance, the Tap 20 does not present itself as a good buy for $1,000. You could definitely get a more powerful and capable computer for the money.

We'll take our hats off to Sony for being original, but this little - well, rather large - experiment doesn't gel together particularly well due to its size. There's some good to be taken away, as the ideas are solid, but otherwise all its quirks will add little benefit to the majority of users.

The Vaio Tap 20 Mobile Desktop lives in a space between a touchscreen tablet and a full-fledged all-in-one PC. The machine is a pretty good choice if you’re looking for a family PC with multiple personalities.

It isn’t a dreadful product by any means: the screen is excellent, it’s responsive and well-designed. Once again, though, it’s close but no cigar for a Sony Windows 8 device.

... Sony did grab our attention with a comfortable touch experience and a well-configured screen. But to get more than three stars, Sony will have to revise a number of things, such as the speaker quality and the graphics.

The Tap 20 feels like a genuine step forward in all-in-one PC design: lighter, better looking and more portable than anything else on the market. It's all rather futuristic, even compared to other all-in-ones, let alone regular desktop machines.

A small-screened AIO PC that moonlights as a Windows 8 mega-tablet, the VAIO Tap 20 is a reasonable pick (in its lower-cost configurations) for buyers who need a uniquely flexible desktop.