From a cosmetic standpoint, Aliph has made five small but noteworthy changes to the 2008 Jawbone for Jawbone Prime. First, last year’s diamond-textured outer skin has been replaced with one that’s textured with eye-shaped ovals, for better or worse; second is that an indented line has been added to that textured surface to clearly delineate Prime’s two integrated buttons. Third, the previously limited color range has been expanded…