There is not way to do a transfer between 2 different warehouses at the moment.
This workflow is important for customers who are on consignment.
Also, we should be able to transfer from one BIN to another BIN.
I agree with both the suggestions above as many warehouses are using mobile devices for everyday tasks it makes sense to be able to perform these tasks on these types of devices.
Not everyone sits/stands in front of a PC to perform their role........