“Test” SAFEcoin, on the test networks, should be given a tiny, arbitrary value of a few cents.
Participants on the test networks would be playing with such test SAFEcoin but not really playing, in the same way that the people who bought pizza for thousands of Bitcoin were kind of playing but at the same time doing real commerce. In the case of Bitcoin, this process also allowed its adoption as a real currency to be gradual and to let the core devs work out the bugs in a realistic but at the same time not very dangerous environment. Although Bitcoin was always a deterministic, blockchain currency without a central issuer, I believe SAFEcoin can benefit from a similar gradualism, starting with a fiat test coin of almost insifgnificant value.
In that way SAFEcoin would not arrive like a thunderclap, and it would not be a surprise. There would be no sharp distinction between SAFEcoin as play money and as a real currency.
In such a setting, the eventual exchange of MaidSafeCoin for SAFEcoin, on the production network, would be more of a mere formality, since the element of surprise had been removed.
Maidsafe might also make some fiat money from the sale of the test SAFEcoin.