Technology is moving fast, and I put my mind again to the problem of making all these existing AG-5s wireless
. I think I came up with something workable.
The basic idea is that there's software out there that allows you to share mouse and keyboard between two computers, over a network. That means that the host computer runs a server, and the other system(s) run clients of a sort, but have no physical mouse/KB plugged into them. Well, as long as they're both on the same network.
A Raspberry Pi Zero W (has wifi built-in) is the host. It has a small Li-Ion battery pack. The AlphaGrip plugs into the Pi, and the Pi plugs into the battery. As long as the Pi and the computer you want to use are on the same network and have Synergy running and configured correctly, the AlphaGrip will control the remote PC - without wires.
I know it is a convoluted solution, but should only cost about $45. My main concern would be the additional weight, and whether or not the 'Grip is still usable. I have most of the components, so I might try this out in the next week or two...