Turn your iPhone in to a complete portable DJ setup

If you want to turn your iPad, iPhone or iPod Touch in to a portable DJ setup, Griffin Technology and algoriddim have the solution.
The new DJ Cable from Griffin works with the djay app by algoriddim to replicate the complete DJ experience, allowing you to mix any tracks from your iTunes library.
The DJ Cable's 'Split Output' function splits the signal and sends audio from your iOS device to a set of headphones and to your music system.
Algoriddim's djay app then gives you a virtual turntable and mixer setup on your portable, allowing you to queue one track in your headphones while your audience hears another.
The app also allows you to record your mixes or hit Automix to let the app sort out a playlist for you while you enjoy your party.
The Griffin DJ Cable is set to cost around £20, while the djay app, available from the iTunes Store, is currently £5.99 for iPad and £0.59 for iPhone and iPod Touch.

Comments
Yes - I rather feared that was all it would be. You can get a splitter from a high street store or online for £2 to split the right and left channels like that. I'm sure I already have one or two in my drawer at home.
Surely it must be possible to use the headphones output on the top for DJ 'monitoring' (separate volume controlable) whilst simultaneously feeding the master 'mix' output via a cable attached to the port on the bottom.
I have seen some headphones with controls on them that use the port at the bottom. I guess it might be a limitation of the device that you can't output the 4 separate audio channels that would be required. Or maybe the iPhone wouldn't be able to handle it without stuttering anyway?
Clever but the split output cable does mean your audience only gets a mono experience, whether that matters or not is another thing.