* To estimate the proportion of patients, with metastatic mucosal, acral, or chronically sun damaged melanomas, whose tumors have KIT aberrations, and who progressed or could not tolerate a KIT targeting tyrosine kinase inhibitor (TKI) (e.g. including but not limited to imatinib mesylate, sunitinib, or dasatanib), who are alive and without progression of disease four months after beginning treatment with nilotinib.