"Tokina just announced a new version of their popular 11-16mm f/2.8 lens. The new lens will have an aspherical element, new coating for improved performance and a SD-M (Silent Drive-Module) autofocus motor (AF-S equivalent). You can now use this lens even with Nikon DSLR cameras that don't have an integrated AF motor (D3100, D5100). The Nikon version is expected to start shipping in March, 2012. The old Tokina 11mm-16mm f/2.8 lens currently has a $40 mail-in rebate."
Via Philippe Gassmann