While Channel 4's catch-up service 4oD has been available on mobile for a number of years, viewers were always limited to streaming their favourite shows over a Wi-Fi connection. That changed at the start of the month when the broadcaster updated its iOS app to deliver streams over 3G and 4G connections. It took a couple of weeks, but it's now equipped its Android app with the same capability. That means you can now stream full Channel 4, E4 and More4 programmes when you're on the move and enjoy "4Shorts," hundreds of clips, extras and trailers from your favourite shows. If you wanted to stream Countdown while on your daily commute, you can now do so on either your iOS or Android device.