Completing a phased roll-out that kicked off back in April, AT&T has finally gotten around to launching its 3G MicroCell in all of its markets, giving the entire customer base some flexibility when "more bars in more places" doesn't happen to include your place. Interestingly, the announcement was made in passing during comments by AT&T director Gordon Mansfield at the Femtocells World Summit in London this week, where he spent much of his time trying to quell a minor furor over the carrier's continued application of data caps when using the MicroCell. He ma