With the additional devices using VE.Direct, 3 ports is not enough in many cases. A USB VE.Direct adapter per VE.Direct port is certainly an option but costs add up and the need for a powered USB hub running off battery voltage becomes necessary rapidly.
I suggest a version of the VE.Direct to USB adapter be made that has something on the order of 4 VE.Direct ports be created.
I'd also like to see a Cerbo-like GX device with more USB ports since the demand for these is also increasing.