MacUpdate’s promo today is for Macintosh Explorer for US$8.95 (44% off, retail $15.95). Macintosh Explorer is a file browser and management tool that brings a hierarchal navigation system to the Mac. The first Macintosh File browser to offer tabbed file browsing, Thumbnail previews of pictures files and filter based file browser, Macintosh Explorer offers a new and unique file browsing experience. Macintosh Explorer requires Mac OS X 10.3 or later. This special runs today only.