Seems like a logical move to Doc, given that in 2009 more than 96 million people filed electronically and only 20 million filed on paper. And that amount is dropping each year.
It is a bit ironic, though, that at the same time the IRS was announcing this efficiency move, the United States Postal Service is crying the blues due to a drop in mail volume and increased costs. What one hand of the government giveth the other hand taketh away.