Looks like ciecio7 (ebay) is the first out of the gate with direct adapters for Nikon F, as well as Minolta MD and others. Has anyone tried one of the Nikon F adapters?
http://shop.ebay.com/merchant/cieci..._fromfsb=&_trksid=m270.l1313&_odkw=&_osacat=0
http://shop.ebay.com/merchant/cieci..._fromfsb=&_trksid=m270.l1313&_odkw=&_osacat=0