Customers Donna Witulski, left, and Vickie Youseff, center, ask questions of Microsoft's newly-released operating system, Windows 7, to store employee James Vallejo, right, during the grand opening of Microsoft Corp.'s first-ever retail store Thursday, Oct. 22, 2009, in Scottsdale.
Guest Commentary by Michael Carroll
Guest commentary by Phil Kerpen
By Mark Heller, Tribune
By Mark Scarp, contributing columnist
By Jerry Brown, contributing columnist