Mere's the latest on the future of the Landmark Tower.A Beverly H 11s corporation. Inter-Nation Tower. Inc.. is negotiating with R( A Whirlpool. Inc.. to develop the tower and the adjacent property into an international market place.It would be opened as a display and sales center for the arts, crafts, merchandise and exports from many of the free countries of the world. There would be displays of leather goods and jewelry from England, perfumes and antiques of Franc e, silks, beaded gowns and sweaters from Hong Kong, etcThe project is getting enthusiastic support from the local merchants and resort hotels.