Will 2008 be a challenge for Microsoft? That's not the message one would necessarily glean from an examination of the just-ended year. Microsoft had a solid 2007. In its last full quarter of the calendar year, sales were up 27% and profits jumped 23% percent. The company could also boast that it sold twice as many copies of its new Windows Vista operating system in the weeks following Vista's January launch than it did copies of Windows XP during XP's honeymoon period ... (read more)