Re: One network?
Uber is effectively the employment agent, arranging contact between a contractor and their customer in return for a commission, says I. In that regard then, no different to any other middleman situation.
This is how I read it, too.
Many who do contracting in the UK work through employment agencies. The agent finds you a contract, and often provides several other services (collecting the money on your behalf, negotiating contracts etc.). They take a commission for doing so.
This is exactly what Uber do. They advertise your services, find you a customer, pass that customer on to you, and collect the money for you. They are providing a set of services to you, in return for payment.
I guess it depends on exactly how the contracts are formed. If the contract is legally between the customer and driver, with the driver having a separate contract for services with Uber, then Uber are effectively an agency. If the contract is between the customer and Uber (which I expect most customers would assume), then they could easily be classed as employees. This will be the point which will likely be played out in the courts.