Is there a method to connect two or more F5/F55 together via WiFi (to share the same setup) or at least simultaneously trigger record start/stop? I'm searching for a simple method to do this for 3D rigs, but it would also be useful for multi-camera shoots.

Hi Tim. At the moment I'm pretty sure it's not possible. You can only connect directly to one camera at a time. Hopefully going forward you'll be able to connect multiple F5/F55's to a network, each with a unique IP and then control multiple cameras as you can with the F65 and the iPad app.