Just saw this from Markertek,
Looks interesting, not sure how useful it would be, but could be fun, onstage.
http://www.markertek.com/product/mck-prodx8/mackie-prodx8-8-channel-wireless-digital-mixer Simple and Intuitive
Control every level from the single knob front panel interface
Clean and professional design looks great anywhere
Ultra-compact for effortless transport and a perfect fit in tight spaces
Integrated control bridge holds your phone or tablet for a quick view of your mix
Wireless Streaming and Control via the MixerConnect app on iOS and Android
Stream music or backing tracks via Bluetooth
Control levels, EQ, effects and more from anywhere
Recallable mix presets for quick setup
Place the mixer out of sight without losing any control
Sound Your Best with Powerful Built-in Processing
Dial in your sound with musical 3-band EQ with low-cut per channel
No-hassle channel compression adds punch to any vocal or instrument
Sweeten your mix with 16 great-sounding ReadyFX reverbs, delays and choruses
Outputs feature a flexible graphic EQ for fine tuning your mix
All the Right I/O
6 Wide-Z inputs for simple connection of mics, guitars, keyboards and more with no gain adjustments needed
Connect your media player via the stereo 1/8" input or stream wirelessly via Bluetooth
L/R main outs to connect to your PA speakers, power amps or studio monitors
Two aux sends allow you to create multiple monitor or separate zone mixes
Headphone output for critical listening or monitoring on stage
http://mackie.com/products/prodx-series