I am also thinking about installing Lion over SL. I currently use my GOOGLE calendar as default for entire family. We have separate APPLE accounts but each of our 3 MACS and 4 Touches display that "family" GOOGLE calendar in addition to other calendars. Will that change with iCloud? Will all 7 devices display the GOOGLE calendar in addition to the other available calendars? Or does iCloud prevent the iTouches and MACS from adding the Google-synced calendar?