Well the Karmic Koala finally climbed down from its eucalyptus tree last week, and the general result was feverish excitement across the Linux blogs. Reviews of the new release seem highly favorable, on the whole, as does the download process via release mirrors and torrents. Though the Koala was released Thursday, the anticipation has been building for weeks, as one might expect. Amid all the Win 7 hoopla, the Koala seems to be doing well. For all the glowing reviews and general excitement, however, not everyone is convinced Linux is ready for the mainstream.