According to DPReview, Tamron announced the SP AF70-200mm F/2.8 Di LD (IF) Macro at PMA 2008. It seems to be an interesting addition to the camp of Sigma 70-200mm f/2.8 EX DG Macro and Tokina AT-X 828 AF Pro 80-200mm f/2.8 as a low cost alternative to the expensive OEM counterparts. Although not mentioned in the DPReview coverage, the Nikon mount version will have a built-in auto focus motor so it works on all Nikon DSLR cameras including D40/D40X/D60, which do not have in-body AF motor. Quoting from the product overview from Tamron:
While overall dimensions are confined to the absolute minimum, the new SP AF70-200mm F/2.8 zoom lens is packed with features that allow stress-free photography: a versatile MFD of just 37.4″ over the entire zoom range; best-in-class maximum macro magnification ratio of 1:3.1 at f=200mm; and an advantageous internal focusing (IF) system. The new tele-zoom lens covers a desirable focal length range of 70mm medium telephoto to 200mm telephoto when mounted on full-size format SLR cameras and a focal length range from 109mm to 310mm* ultra telephoto when mounted on a DSLR camera with an APS-C sized imager.
Keywords: Lens, PMA08, SLR Camera, Tamron