This touchscreen PC has a built-in battery -- you can use it on your couch
Good Gear Guide.au
9 February 2013
Conclusion: Sony’s VAIO Tap 20 wants to bridge the gap between your study desk and your couch. With its internal battery it’s good for around 90 minutes of Web browsing or video watching -- not a huge amount, but better than nothing.
Pros: Built-in battery, Large screen (for a tablet), Versatile design
Cons: Heavy, cumbersome, Low screen resolution, Bundled keyboard and mouse aren’t great