On-line purchases and sales tax - unfair?

In the Quill decision the Supreme Court explicitly stated that it's decision requiring physical presence could be overridden by congressional legislation.

In 2011, Senators Dick Durbin (D-Illinois), Mike Enzi (R-Wyoming) and Lamar Alexander (R-Tennessee) introduced a bill that would overrule the decision and allow states to collect sales taxes on internet sales.

This bill is likely to be passed after the 2012 elections.