Google's Nexus 7 is both cheap and powerful and its small size makes it easy to carry round. It has no SD card slot as standard, but with only a few steps and minimal fuss, you'll quickly be able to ...

The Samsung Galaxy Tab 10.1 and 8.9 slates are notable for their slim, iPad-esque profiles. They’re also notable for having only one port: a 30-pin connector. By default, users can’t plug in a USB ...