It is now possible to remote the Roland V-1HD⁺ mixer from an iPad
Roland uploads a V-02HD iPad app | Pro AVL Central
Amazon.com: Behringer FLOW 8 8-Input Digital Mixer with Bluetooth Audio and App Control, 60 mm Channel Faders, 2 FX Processors and USB/Audio Interface : Musical Instruments
IK Multimedia releases iRig MIX - Mobile DJ Mixer for iPad, iPhone, and iPod touch
TOA Canada - M-864D iOS App now Available
10 Best Music Mixer Apps | Make Your Own Sound Mixing on Phone