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A/V ideas

The handwriting on many of the cards is unintelligible to you, but you can make out a few.

Audio mixing tablet

Wireless mixers like the Behringer XR18 are great, but a phone or tablet is not an ideal device for mixing. Features I would like in a tablet designed for wireless mixing:

Still has a touchscreen
Nine (or at least seven) rotary encoders for fine adjustments (it's really easy to mess up a fine adjustment on a touchscreen)
Stylus, too
3.5mm TRRS headset jack with live monitoring and talkback
Macros! Including a smooth fade-in/fade-out button
A wrist strap so it's harder to drop

Low-maintenance rack recorder

An audio recorder that can live in the rack with your mixer. The design goal is that it can record events with zero user intervention, and upload the recordings somewhere for further processing.

Dual XLR inputs and a 3.5mm input (can record both in parallel)
SD card slot
Small backup battery to finish recordings in the event of power loss
Ethernet and Wi-Fi, so it can automatically upload recordings to the cloud storage of your choice
Configurable auto-start and stop, based on timers ("every Sunday, 10:59 AM to 12:35 PM") or levels
Also start and stop buttons
Half a rack unit wide

Presentation hub

The "presentation hub" is a wireless router that connects to another wireless (or wired) network to provide Internet uplink. It also has HDMI, VGA, and 3.5mm TRS outputs, and connected clients can share their screens to the presentation hub. I was inspired by seeing a vendor bring an Apple TV and wireless router to run a demo with multiple devices. (Of course they were all Apple devices...)

Rack interconnect cable

For interconnecting audio gear that lives in a rack. Power your mixer, and connect all your peripherals to the mixer with one of these. Each peripheral would have an "upstream" connector (to the mixer) and a "downstream" connector (to more peripherals).

Power
Audio (analog? you probably need a small microcontroller to negotiate channel usage if it's analog)
Data (Ethernet? MIDI?)
Standards for connector placement on equipment
Connectors keyed to enforce proper direction
RIGHT ANGLE CONNECTORS ON CABLES

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