The tide may be turning towards a tax-free Internet purchase zone if Virginia Governor James S. Gilmore III has his way. As head of the Advisory Commission on Electronic Commerce, Gilmore has recommended, among other provisions, that levying taxes on virtual purchases would discourage the future of e-commerce.His suggestions also include repealing a federal excise tax on local and long-distance telephone service, and for states to be free to spend welfare money on computers and Internet access for poor people.