Patent reform 2011: litigating away the little guy?

The New York Times on 4/21 had several letters under the title How to Improve Our Patent System. The first criticized Doug Lichtman:

Under Mr. Lichtman’s plan, those with the best lawyers could simply litigate away the little guy. Obtaining a patent would be an invitation for large corporations to decide it’s cheaper to drag the patent’s holder into court to convince the jury that the idea was “obvious,” rather than negotiate for the value of his or her invention.