Cut the wires with DJiT's wireless crossfader - plus there's a new companion app to teach you to scratch too.

The Scratch app allows you to create Scratch projects without an internet connection, simply download the Scratch app from the Scratch website or the app store on your device.

With global app revenue rising every year, there has never been a better time to learn app development. You can use your skills to build the next big thing or get a well-paid job in programming.

Mark Gibbs explores Scratch and StarLogo, programming systems implements the metaphor for Google's forthcoming App Inventor ...