B&H has the Rokinon 14mm f/2.8 IF ED UMC lens for $299 (reg. $399) available for Canon, Nikon, Sony A, Sony E, Four Thirds, Fuji X, Micro Four Thirds, Samsung NX and Pentax mounts. Check it out here at B&H Photo.
Note that the GF2 has been discontinued for some time; however, the 14mm f/2.8 lens sells alone for $322. Adorama must be clearing out the last of its stock, so don’t expect this to last long.