ViewSonic caused quite a stir when it revealed that its ViewPad 4 will launch with an as-yet unnumbered version of Android Gingerbread last week.

Although we weren't privy to this secret new version of the OS, we did get some hands-on time with the device at Mobile World Congress 2011, which ViewSonic isn't sure whether to call a tablet or a smartphone.

Our colleagues at T3.com grabbed some ViewSonic ViewPad 4 video footage which you can watch below.

Read on for our hands-on ViewSonic Viewpad 4 review, but do remember that we're talking about a pre-production model, so some niggles may be sorted in the final version, a full review of which we'll bring you as soon as possible.

ViewSonic viewpad 4 review

The model we played with is running Android 2.3, and it's a fairly basic installation with no snazzy skins on top.

The handset itself looks smart from a distance, but up close it feels very plasticky and a bit fragile; we could imagine it coming apart quite easily if dropped. It's quite boxy as well, and the design seems a little unimaginative.

ViewSonic viewpad 4 review

Like many gloss smartphones, the shiny covering is quite easily smudged and smeared with fingerprints, too.

With a four-inch touchscreen, ViewSonic openly considers the ViewPad 4 as sitting somewhere between a smartphone and a tablet. The screen itself is nice and bright, but you do have to be quite firm with it to get your touchscreen commands to register.

ViewSonic viewpad 4 review

When it comes to connections, ViewSonic hasn't skimped; there's HDMI-out, audio-out and micro-USB for physical connectivity.

ViewSonic viewpad 4 review

The five-megapixel camera sits on the back of the handset, while there's also a front-facing camera for video calling.