Duet Display allows you to use your iPad or iPhone as an extra display. Developed by a team of ex-Apple engineers, duet is the first high-performance solution that has zero lag.
Work more effectively with Duet. An additional display can increase productivity for engineers, musicians, designers, and artists by up to 48%.
To setup, download and open duet on your Mac (for free) and on iOS. Connect your iDevice to your Mac using a lightning or 30 pin cable. Done.
No need to worry about firewall settings, Wi-Fi speed or your 802.11n network. Duet is secure, simple, and allows you to use your iOS and OS X devices in harmony.