The new v 3.10 Sound Devices firmware update for the 633, 664, and 688 adds support for third party wireless control, time code and metadata management including the Timecode Systems :wave, PureBlend's MovieSlate iOS app, and Ambient's Master Lockit. With just the firmware update (downloadable here), a time code hub, and a link cable, you can now control your mixer from your iOS device (Timecode Systems) or any web browser (Ambient Lockit). The Ambient Lockit will also work with your 788T.

Here are the gear lists Sound Devices put together:

iOS Wireless Remote Control Integration (more info from MovieSlate)

• Timecode Systems :wave - firmware v. 388 or later
• TCB-40 or TCB-41 cable - connects :wave DATA port to 6-series USB port (or CL-12 keyboard port). The TCB-41 is an alternate for use with a CL-12 without using the keyboard port.
• MovieSlate App on an iOS Device with Sound Department PRO plug-in

Web-based Remote Control Integration (more info from Ambient)

• Ambient Recording ACN-Master Lockit - firmware v. 4.10 or later
• MLC-HID or MLC-CL cable - MLC-HID connects Lockit to 6-series USB port (or CL-12 keyboard port); MLC-CL connects Lockit to C-Link In on the 788T
• USB Adapter
• Computer or mobile device with web browser and WiFi

More details and set-up diagrams here!