Sedo has a proposal for how to handle the release of valuable single-letter domain names: "Sedo proposes that the proceeds from the auction of uniquely valuable domains go directly to bolster the ICANN budget, offsetting the proposed new ICANN fees. The company estimates that the sale of the remaining 23 one-letter .com names would generate approximately $2 to $5 million. The auction would serve as an ideal test case to determine whether the practice can be used in similar future situations." (Press Release here / Sedo Proposal here). This is certain to provoke a four-letter response from some quarters.